What is VCRUNTIME140.dll?

VCRUNTIME140.dll is part of Microsoft® Visual Studio® and developed by Microsoft Corporation according to the VCRUNTIME140.dll version information.

VCRUNTIME140.dll's description is "Microsoft® C Runtime Library"

VCRUNTIME140.dll is digitally signed by Microsoft Corporation.

VCRUNTIME140.dll is usually located in the 'C:\WINDOWS\SYSTEM32\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about VCRUNTIME140.dll.

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.

VirusTotal report

None of the 71 anti-virus programs at VirusTotal detected the VCRUNTIME140.dll file.

Sandbox Report

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

Summary

Successfully executed process in sandbox.

Summary

{
    "dll_loaded": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll"
    ],
    "file_opened": [
        "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll.manifest",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll"
    ],
    "regkey_read": [
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\Windows Error Reporting\\WMR\\Disable",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2856,
        "summary": {
            "file_opened": [
                "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\Windows Error Reporting\\WMR\\Disable",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll"
            ]
        },
        "first_seen": 1605102785.9375,
        "ppid": 2124
    },
    {
        "process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2124,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll.manifest",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\5e197a086b6a7711baa09afe4ea7c68f0e777b2ff33f1df25a21f375b7d9693a.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1605102785.765625,
        "ppid": 2504
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1605102785.328125,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "d:\\agent\\_work\\1\\s\\\\binaries\\amd64ret\\bin\\amd64\\\\vcruntime140.amd64.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 1,
        "families": [],
        "description": "The executable contains unknown PE section names indicative of a packer (could be a false positive)",
        "severity": 1,
        "marks": [
            {
                "category": "section",
                "ioc": "_RDATA",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_features"
    }
]

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": 662,
            "time": 6.213487148284912,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5190,
            "time": 6.1492791175842285,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5518,
            "time": 4.168386220932007,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5846,
            "time": 6.156668186187744,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6174,
            "time": 4.665332078933716,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6502,
            "time": 3.059019088745117,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6830,
            "time": 4.240866184234619,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 18678,
            "time": 4.202508211135864,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 22870,
            "time": 6.248739004135132,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "5b7f99f36e1fbca09a2862e83cd846a2023880c71868367d2c7d357e2adf253e",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "4252bbb8abd55ed7ad149279d2b7de2464a1c6af32ccd5b0f9c0a9a09d350a1b",
    "irc": [],
    "https_ex": []
}

Screenshots

Filename variants

VCRUNTIME140.dll may also use other filenames. The most common variants are listed below:

• 33365904.rbf

Folder name variants

VCRUNTIME140.dll may also be located in other folders than C:\WINDOWS\SYSTEM32\. The most common variants are listed below:

• c:\Program Files\AVG\Antivirus\defs\21040804\avg.local_vc142.crt\
• c:\Windows\Installer\Config.Msi\

Other files also named VCRUNTIME140.dll

VCRUNTIME140.dll (56 votes)

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.

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