What is nvldumdx.dll?

nvldumdx.dll is part of NVIDIA driver loader and developed by NVIDIA Corporation according to the nvldumdx.dll version information.

nvldumdx.dll's description is "NVIDIA Driver Loader, Version 436.51 "

nvldumdx.dll is digitally signed by NVIDIA Corporation-PE-Prod-Sha1.

nvldumdx.dll is usually located in the 'C:\Windows\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_989f3e075dd13d7d\' folder.

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

Vendor and version information [?]

The following is the available information on nvldumdx.dll:

PropertyValue
Product nameNVIDIA driver loader
Company nameNVIDIA Corporation
File descriptionNVIDIA Driver Loader, Version 436.51
Internal namenvldumd
Original filenamenvldumd.dll
Legal copyright(C) 2019 NVIDIA Corporation. All rights reserved.
Product version26.21.14.3651
File version26.21.14.3651

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

Product nameNVIDIA driver loader
Company nameNVIDIA Corporation
File descriptionNVIDIA Driver Loader, Version 436.51
Internal namenvldumd
Original filenamenvldumd.dll
Legal copyright(C) 2019 NVIDIA Corporation. All rig..
Product version26.21.14.3651
File version26.21.14.3651

Digital signatures [?]

nvldumdx.dll has a valid digital signature.

PropertyValue
Signer nameNVIDIA Corporation-PE-Prod-Sha1
Certificate issuer nameNVIDIA Subordinate CA 2019-Prod-Sha1
Certificate serial number55f7759add9d0cb44b3db5434a665885

VirusTotal report

None of the 69 anti-virus programs at VirusTotal detected the nvldumdx.dll file.

None of the 69 anti-virus programs detected the nvldumdx.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\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll"
    ],
    "file_opened": [
        "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll"
    ],
    "command_line": [
        "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll,DllMain"
    ],
    "file_exists": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll.manifest"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.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\\SysWOW64\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2504,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll"
            ],
            "command_line": [
                "\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll,DllMain"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll.manifest"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
            ]
        },
        "first_seen": 1570711985.8281,
        "ppid": 1512
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1570711985.5469,
        "ppid": 376
    },
    {
        "process_path": "C:\\Windows\\System32\\rundll32.exe",
        "process_name": "rundll32.exe",
        "pid": 2500,
        "summary": {
            "file_opened": [
                "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui"
            ],
            "file_exists": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll",
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll.manifest"
            ],
            "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\\d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3.bin.dll"
            ]
        },
        "first_seen": 1570711985.9844,
        "ppid": 2504
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "C:\\dvs\\p4\\build\\sw\\rel\\gpu_drv\\r435\\r436_45\\drivers\\nvldumd\\_out\\wddm2_amd64_release\\nvldumdx.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The executable contains unknown PE section names indicative of a packer (could be a false positive)",
        "severity": 1,
        "marks": [
            {
                "category": "section",
                "ioc": ".gfids",
                "type": "ioc",
                "description": null
            },
            {
                "category": "section",
                "ioc": ".00cfg",
                "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": 6.2056338787079,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5442,
            "time": 6.1446208953857,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5770,
            "time": 4.1497709751129,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6098,
            "time": 6.15456199646,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6426,
            "time": 4.7915849685669,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6754,
            "time": 3.0498299598694,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 7082,
            "time": 4.7177309989929,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 16880,
            "time": 4.187686920166,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 25264,
            "time": 6.2702839374542,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "eade6bf73a878560c740cfe163f1822e7cd25c3bdaa5645a8e19fbb3618d60e4",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "b96d5baace110e76b2fd0053a8f300472b4911272fcdc9cfd8c4b398a93d5e5e",
    "irc": [],
    "https_ex": []
}

Screenshots

Screenshot from the sandboxScreenshot from the sandbox

Other files also named nvldumdx.dll

nvldumdx.dll (93 votes)

Hashes [?]

PropertyValue
MD53af1b5e323765c2199134d67f55ecb00
SHA256d1d897f385e9ff587a670c3b98678a97f2b1322e12ea5e3da2c98adb264463e3

What will you do with nvldumdx.dll?

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



Malware or legitimate?

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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.

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