What is chrmstp.exe?

chrmstp.exe is part of Google Chrome Installer and developed by Google Inc. according to the chrmstp.exe version information.

chrmstp.exe's description is "Google Chrome Installer"

chrmstp.exe is digitally signed by Google LLC.

chrmstp.exe is usually located in the 'c:\Program Files (x86)\Google\Chrome\Application\73.0.3683.103\Installer\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about chrmstp.exe.

If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.

Vendor and version information [?]

The following is the available information on chrmstp.exe:

PropertyValue
Product nameGoogle Chrome Installer
Company nameGoogle Inc.
File descriptionGoogle Chrome Installer
Internal namesetup
Legal copyrightCopyright 2018 Google Inc. All rights reserved.
Product version73.0.3683.103
File version73.0.3683.103

Here's a screenshot of the file properties when displayed by Windows Explorer:

Product nameGoogle Chrome Installer
Company nameGoogle Inc.
File descriptionGoogle Chrome Installer
Internal namesetup
Legal copyrightCopyright 2018 Google Inc. All right..
Product version73.0.3683.103
File version73.0.3683.103

Digital signatures [?]

chrmstp.exe has a valid digital signature.

PropertyValue
Signer nameGoogle LLC
Certificate issuer nameDigiCert SHA2 Assured ID Code Signing CA
Certificate serial number0c15be4a15bb0903c901b1d6c265302f

VirusTotal report

None of the 66 anti-virus programs at VirusTotal detected the chrmstp.exe file.

None of the 66 anti-virus programs detected the chrmstp.exe file.

Sandbox Report

The following information was gathered by executing the file inside Cuckoo Sandbox.

Summary

Successfully executed process in sandbox.

Summary

{
    "file_created": [
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\metadata",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\chrome_installer.log",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat"
    ],
    "file_recreated": [
        "\\Device\\KsecDD"
    ],
    "directory_created": [
        "C:\\Users\\cuck\\AppData\\Local\\Google",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp\\source2308_2111",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\reports"
    ],
    "dll_loaded": [
        "kernel32",
        "dwmapi.dll",
        "kernel32.dll",
        "cryptbase.dll",
        "C:\\Windows\\system32\\uxtheme.dll"
    ],
    "command_line": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\52d36ec903801f159a66b76037702be528bf2c2c228dfb303bf709e05e7322c5.bin --type=crashpad-handler \/prefetch:7 --monitor-self-annotation=ptype=crashpad-handler \"--database=C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\" --url=https:\/\/clients2.google.com\/cr\/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=73.0.3683.103 --initial-client-data=0xe0,0xe4,0xe8,0xd4,0xec,0x13f508358,0x13f508368,0x13f508378"
    ],
    "regkey_opened": [
        "HKEY_CURRENT_USER\\Software",
        "HKEY_CURRENT_USER\\Software\\Google\\Update\\Clients\\{8A69D345-D564-463c-AFF1-A69D9E530F96}",
        "HKEY_CURRENT_USER\\SOFTWARE\\Policies\\Google\\Chrome",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
        "HKEY_CURRENT_USER\\Software\\Google\\Update",
        "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState",
        "HKEY_LOCAL_MACHINE\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}",
        "HKEY_CURRENT_USER\\Software\\Google",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Policies\\Google\\Chrome",
        "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}",
        "HKEY_LOCAL_MACHINE\\Software\\Google\\Update\\ClientStateMedium\\{8A69D345-D564-463c-AFF1-A69D9E530F96}",
        "HKEY_LOCAL_MACHINE\\Software\\Google\\Update\\Clients\\{8A69D345-D564-463c-AFF1-A69D9E530F96}"
    ],
    "file_written": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\chrome_installer.log",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat"
    ],
    "file_failed": [
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat"
    ],
    "directory_removed": [
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp\\source2308_2111",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Application\\SetupMetrics",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\chrome.packed.7z",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\chrome.7z",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\chrome_installer.log",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\reports",
        "C:\\Users\\cuck\\AppData\\Local\\Google",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad",
        "C:\\Users\\cuck\\AppData\\Local",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data"
    ],
    "mutex": [
        "Global\\ChromeSetupMutex_13417486377497706789",
        "Global\\ChromeSetupExitEventMutex_13417486377497706789"
    ],
    "file_opened": [
        "\\\\?\\pipe\\crashpad_2308_LAXWOKLXWDAFSMJJ",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat"
    ],
    "regkey_read": [
        "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\ap",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\CustomLocale\\en-US",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\UBR",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
        "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\ExtendedLocale\\en-US",
        "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\lang",
        "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerError",
        "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerResultUIString",
        "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerResult"
    ],
    "directory_enumerated": [
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp\\source2308_2111\\*",
        "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp\\*"
    ],
    "regkey_written": [
        "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerError",
        "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerResultUIString",
        "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerResult",
        "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerProgress"
    ]
}

Dropped

[
    {
        "yara": [],
        "sha1": "2e7d86a0b248660efdc5cb3bc943388b2dcb75d6",
        "name": "e5896a0785b080ce_settings.dat",
        "filepath": "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat",
        "type": "data",
        "sha256": "e5896a0785b080ce0fa5b6b505cf86e3bfacee6868ff26f6c028d6f4428cbc8c",
        "urls": [],
        "crc32": "63740074",
        "path": "\/home\/hpuser\/.cuckoo\/storage\/analyses\/5767\/files\/e5896a0785b080ce_settings.dat",
        "ssdeep": null,
        "size": 40,
        "sha512": "961a5030ba2d1561545178e03e9f0dbffd37ad6c8515464c6dc370bb24b5c199c9cfb88378e42d1c7eb4453f58b2f4f4612b8f385b072bb54c4205ff8483246a",
        "pids": [
            2588,
            2308
        ],
        "md5": "d78185593105c23bc4e268edf9503f79"
    },
    {
        "yara": [],
        "sha1": "00508b6026f6669d0125f8b4b623fe8a6542e57a",
        "name": "1ba050a2e6f89dba_chrome_installer.log",
        "filepath": "C:\\Users\\cuck\\AppData\\Local\\Temp\\chrome_installer.log",
        "type": "ASCII text",
        "sha256": "1ba050a2e6f89dba128385c509bfc217ca7c8d94c5a32eddef2763cbc4efdda9",
        "urls": [],
        "crc32": "0DE70E7B",
        "path": "\/home\/hpuser\/.cuckoo\/storage\/analyses\/5767\/files\/1ba050a2e6f89dba_chrome_installer.log",
        "ssdeep": null,
        "size": 261,
        "sha512": "69d5c589d804058157e67c859393c90a77d645d5d01b3d0b0eb9363382753352e4cdf7a51b5986b985e53c01f0139e56de0fcdec549926c0512a7b207e9bf5eb",
        "pids": [
            2308
        ],
        "md5": "7931037778ebb018fdc41624ae08dd44"
    }
]

Generic

[
    {
        "process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\52d36ec903801f159a66b76037702be528bf2c2c228dfb303bf709e05e7322c5.bin",
        "process_name": "52d36ec903801f159a66b76037702be528bf2c2c228dfb303bf709e05e7322c5.bin",
        "pid": 2588,
        "summary": {
            "file_created": [
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\metadata",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat"
            ],
            "file_recreated": [
                "\\Device\\KsecDD"
            ],
            "directory_created": [
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\reports",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad"
            ],
            "dll_loaded": [
                "kernel32",
                "dwmapi.dll",
                "cryptbase.dll",
                "C:\\Windows\\system32\\uxtheme.dll"
            ],
            "file_failed": [
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat"
            ],
            "regkey_opened": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion"
            ],
            "file_written": [
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad"
            ],
            "file_opened": [
                "\\\\?\\pipe\\crashpad_2308_LAXWOKLXWDAFSMJJ"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\UBR",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\CustomLocale\\en-US",
                "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Nls\\ExtendedLocale\\en-US"
            ]
        },
        "first_seen": 1583056385.875,
        "ppid": 2308
    },
    {
        "process_path": "C:\\Users\\cuck\\AppData\\Local\\Temp\\52d36ec903801f159a66b76037702be528bf2c2c228dfb303bf709e05e7322c5.bin",
        "process_name": "52d36ec903801f159a66b76037702be528bf2c2c228dfb303bf709e05e7322c5.bin",
        "pid": 2308,
        "summary": {
            "file_created": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\chrome_installer.log"
            ],
            "file_recreated": [
                "\\Device\\KsecDD"
            ],
            "directory_created": [
                "C:\\Users\\cuck\\AppData\\Local\\Google",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp\\source2308_2111",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\reports"
            ],
            "dll_loaded": [
                "kernel32",
                "kernel32.dll",
                "cryptbase.dll"
            ],
            "command_line": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\52d36ec903801f159a66b76037702be528bf2c2c228dfb303bf709e05e7322c5.bin --type=crashpad-handler \/prefetch:7 --monitor-self-annotation=ptype=crashpad-handler \"--database=C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\" --url=https:\/\/clients2.google.com\/cr\/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=73.0.3683.103 --initial-client-data=0xe0,0xe4,0xe8,0xd4,0xec,0x13f508358,0x13f508368,0x13f508378"
            ],
            "regkey_opened": [
                "HKEY_CURRENT_USER\\Software",
                "HKEY_CURRENT_USER\\Software\\Google\\Update\\Clients\\{8A69D345-D564-463c-AFF1-A69D9E530F96}",
                "HKEY_CURRENT_USER\\SOFTWARE\\Policies\\Google\\Chrome",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
                "HKEY_CURRENT_USER\\Software\\Google\\Update",
                "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState",
                "HKEY_LOCAL_MACHINE\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}",
                "HKEY_CURRENT_USER\\Software\\Google",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Policies\\Google\\Chrome",
                "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}",
                "HKEY_LOCAL_MACHINE\\Software\\Google\\Update\\ClientStateMedium\\{8A69D345-D564-463c-AFF1-A69D9E530F96}",
                "HKEY_LOCAL_MACHINE\\Software\\Google\\Update\\Clients\\{8A69D345-D564-463c-AFF1-A69D9E530F96}"
            ],
            "file_written": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\chrome_installer.log",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat"
            ],
            "directory_removed": [
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp\\source2308_2111",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Application\\SetupMetrics",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\chrome.packed.7z",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\chrome.7z",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\chrome_installer.log",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\reports",
                "C:\\Users\\cuck\\AppData\\Local\\Google",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad",
                "C:\\Users\\cuck\\AppData\\Local",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data"
            ],
            "mutex": [
                "Global\\ChromeSetupMutex_13417486377497706789",
                "Global\\ChromeSetupExitEventMutex_13417486377497706789"
            ],
            "file_opened": [
                "\\\\?\\pipe\\crashpad_2308_LAXWOKLXWDAFSMJJ",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat"
            ],
            "regkey_read": [
                "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\ap",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\UBR",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
                "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\lang",
                "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerError",
                "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerResultUIString",
                "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerResult"
            ],
            "directory_enumerated": [
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp\\source2308_2111\\*",
                "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp\\*"
            ],
            "regkey_written": [
                "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerError",
                "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerResultUIString",
                "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerResult",
                "HKEY_CURRENT_USER\\Software\\Google\\Update\\ClientState\\{8A69D345-D564-463c-AFF1-A69D9E530F96}\\InstallerProgress"
            ]
        },
        "first_seen": 1583056385.484375,
        "ppid": 3040
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1583056385.296875,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "Checks if process is being debugged by a debugger",
        "severity": 1,
        "marks": [
            {
                "call": {
                    "category": "system",
                    "status": 0,
                    "stacktrace": [],
                    "last_error": 0,
                    "nt_status": -1073741811,
                    "api": "IsDebuggerPresent",
                    "return_value": 0,
                    "arguments": {},
                    "time": 1583055956.597271,
                    "tid": 2952,
                    "flags": {}
                },
                "pid": 2588,
                "type": "call",
                "cid": 151
            }
        ],
        "references": [],
        "name": "checks_debugger"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "setup.exe.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 4,
        "families": [],
        "description": "The executable contains unknown PE section names indicative of a packer (could be a false positive)",
        "severity": 1,
        "marks": [
            {
                "category": "section",
                "ioc": ".00cfg",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": ".retplne",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": "CPADinfo",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": "prot",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_features"
    },
    {
        "markcount": 3,
        "families": [],
        "description": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "category": "resource name",
                "ioc": "EULA",
                "type": "ioc",
                "description": null
            },
            {
                "category": "resource name",
                "ioc": "GOOGLEUPDATEAPPLICATIONCOMMANDS",
                "type": "ioc",
                "description": null
            },
            {
                "category": "resource name",
                "ioc": "PATCHERTYPE",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_unknown_resource_name"
    },
    {
        "markcount": 6,
        "families": [],
        "description": "Steals private information from local Internet browsers",
        "severity": 2,
        "marks": [
            {
                "category": "file",
                "ioc": "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Application\\SetupMetrics",
                "type": "ioc",
                "description": null
            },
            {
                "category": "file",
                "ioc": "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\settings.dat",
                "type": "ioc",
                "description": null
            },
            {
                "category": "file",
                "ioc": "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad\\reports",
                "type": "ioc",
                "description": null
            },
            {
                "category": "file",
                "ioc": "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\Temp",
                "type": "ioc",
                "description": null
            },
            {
                "category": "file",
                "ioc": "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data\\Crashpad",
                "type": "ioc",
                "description": null
            },
            {
                "category": "file",
                "ioc": "C:\\Users\\cuck\\AppData\\Local\\Google\\Chrome\\User Data",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "infostealer_browser"
    }
]

Yara

The Yara rules did not detect anything in the file.

Network

{
    "tls": [],
    "udp": [
        {
            "src": "192.168.56.101",
            "dst": "192.168.56.255",
            "offset": 546,
            "time": 3.0786519050598145,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4102,
            "time": 3.0371129512786865,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4430,
            "time": 1.0181260108947754,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 4758,
            "time": 3.049027919769287,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5086,
            "time": 1.5221259593963623,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5414,
            "time": -0.0997309684753418,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 5742,
            "time": 1.5316708087921143,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 13304,
            "time": 1.0390539169311523,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 17496,
            "time": 3.125321865081787,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "023ef895202a50f01227458f79a49ca9905e5c5763ed0ec6d35da376557c0ce4",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "239119caa9fa2388c71eec84a0e1c853fce1543a9c06d836a337ebf8f8a9618b",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandbox

Filename variants

chrmstp.exe may also use other filenames. The most common variants are listed below:

Folder name variants

chrmstp.exe may also be located in other folders than c:\Program Files (x86)\Google\Chrome\Application\73.0.3683.103\Installer\. The most common variants are listed below:

Other files also named chrmstp.exe

chrmstp.exe (46 votes)

Hashes [?]

PropertyValue
MD577a1f8fadec4e122479b6b0d226ab7b0
SHA25652d36ec903801f159a66b76037702be528bf2c2c228dfb303bf709e05e7322c5

Error Messages

These are some of the error messages that can appear related to chrmstp.exe:

chrmstp.exe has encountered a problem and needs to close. We are sorry for the inconvenience.

chrmstp.exe - Application Error. The instruction at "0xXXXXXXXX" referenced memory at "0xXXXXXXXX". The memory could not be "read/written". Click on OK to terminate the program.

Google Chrome Installer has stopped working.

End Program - chrmstp.exe. This program is not responding.

chrmstp.exe is not a valid Win32 application.

chrmstp.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.

What will you do with chrmstp.exe?

To help other users, please let us know what you will do with chrmstp.exe:



Malware or legitimate?

If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.

Please select the option that best describe your thoughts on the information provided on this web page


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Comments

Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.

I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.

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