What is npnitroie.dll?

npnitroie.dll is part of Nitro Pro and developed by Nitro Software, Inc. according to the npnitroie.dll version information.

npnitroie.dll's description is "np_nitro_ie_active_doc"

npnitroie.dll is digitally signed by Nitro Software, Inc..

npnitroie.dll is usually located in the 'C:\Program Files\Nitro\Pro\13\' folder.

Some of the anti-virus scanners at VirusTotal detected npnitroie.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

1 of the 71 anti-virus programs at VirusTotal detected the npnitroie.dll file. That's a 1% detection rate.

Scanner	Detection Name
eGambit	Unsafe.AI_Score_94%

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\\c727ec2123fe9fdf60624e841ec275c2a98c643c0a1eb887c926af43083978f9.bin.dll"
    ],
    "file_opened": [
        "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui",
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\c727ec2123fe9fdf60624e841ec275c2a98c643c0a1eb887c926af43083978f9.bin.dll"
    ],
    "command_line": [
        " C:\\Users\\cuck\\AppData\\Local\\Temp\\c727ec2123fe9fdf60624e841ec275c2a98c643c0a1eb887c926af43083978f9.bin.dll"
    ],
    "regkey_opened": [
        "HKEY_CLASSES_ROOT\\.dll",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\dllfile\\AutoRegister",
        "HKEY_CLASSES_ROOT\\dllfile"
    ],
    "file_read": [
        "C:\\Users\\cuck\\AppData\\Local\\Temp\\c727ec2123fe9fdf60624e841ec275c2a98c643c0a1eb887c926af43083978f9.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",
        "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\.dll\\(Default)"
    ]
}

Generic

[
    {
        "process_path": "C:\\Windows\\SysWOW64\\regsvr32.exe",
        "process_name": "regsvr32.exe",
        "pid": 2436,
        "summary": {
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\c727ec2123fe9fdf60624e841ec275c2a98c643c0a1eb887c926af43083978f9.bin.dll"
            ],
            "file_opened": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\c727ec2123fe9fdf60624e841ec275c2a98c643c0a1eb887c926af43083978f9.bin.dll"
            ],
            "command_line": [
                " C:\\Users\\cuck\\AppData\\Local\\Temp\\c727ec2123fe9fdf60624e841ec275c2a98c643c0a1eb887c926af43083978f9.bin.dll"
            ],
            "regkey_opened": [
                "HKEY_CLASSES_ROOT\\.dll",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\dllfile\\AutoRegister",
                "HKEY_CLASSES_ROOT\\dllfile"
            ],
            "file_read": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\c727ec2123fe9fdf60624e841ec275c2a98c643c0a1eb887c926af43083978f9.bin.dll"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\.dll\\(Default)"
            ]
        },
        "first_seen": 1581623585.625,
        "ppid": 2736
    },
    {
        "process_path": "C:\\Windows\\System32\\regsvr32.exe",
        "process_name": "regsvr32.exe",
        "pid": 2828,
        "summary": {
            "file_opened": [
                "C:\\Windows\\System32\\en-US\\KERNELBASE.dll.mui"
            ],
            "regkey_opened": [
                "HKEY_CLASSES_ROOT\\.dll",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\dllfile\\AutoRegister",
                "HKEY_CLASSES_ROOT\\dllfile"
            ],
            "regkey_read": [
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\Windows Error Reporting\\WMR\\Disable",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\.dll\\(Default)"
            ],
            "dll_loaded": [
                "C:\\Users\\cuck\\AppData\\Local\\Temp\\c727ec2123fe9fdf60624e841ec275c2a98c643c0a1eb887c926af43083978f9.bin.dll"
            ]
        },
        "first_seen": 1581623585.828125,
        "ppid": 2436
    },
    {
        "process_path": "C:\\Windows\\System32\\lsass.exe",
        "process_name": "lsass.exe",
        "pid": 476,
        "summary": {},
        "first_seen": 1581623585.34375,
        "ppid": 376
    }
]

Signatures

[
    {
        "markcount": 1,
        "families": [],
        "description": "This executable has a PDB path",
        "severity": 1,
        "marks": [
            {
                "category": "pdb_path",
                "ioc": "Y:\\workspace\\release-pipeline\\build_x64\\bin\\Release\\browser_plugins\\NPNitroIE.pdb",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "has_pdb"
    },
    {
        "markcount": 2,
        "families": [],
        "description": "The file contains an unknown PE resource name possibly indicative of a packer",
        "severity": 1,
        "marks": [
            {
                "category": "resource name",
                "ioc": "REGISTRY",
                "type": "ioc",
                "description": null
            },
            {
                "category": "resource name",
                "ioc": "TYPELIB",
                "type": "ioc",
                "description": null
            }
        ],
        "references": [],
        "name": "pe_unknown_resource_name"
    }
]

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": 3.0766398906707764,
            "dport": 137,
            "sport": 137
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5326,
            "time": 3.017922878265381,
            "dport": 5355,
            "sport": 51001
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5654,
            "time": 1.0476469993591309,
            "dport": 5355,
            "sport": 53595
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 5982,
            "time": 3.028481960296631,
            "dport": 5355,
            "sport": 53848
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6310,
            "time": 1.5509889125823975,
            "dport": 5355,
            "sport": 54255
        },
        {
            "src": "192.168.56.101",
            "dst": "224.0.0.252",
            "offset": 6638,
            "time": -0.09470391273498535,
            "dport": 5355,
            "sport": 55314
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 6966,
            "time": 1.5623219013214111,
            "dport": 1900,
            "sport": 1900
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 16764,
            "time": 1.0779690742492676,
            "dport": 3702,
            "sport": 49152
        },
        {
            "src": "192.168.56.101",
            "dst": "239.255.255.250",
            "offset": 25148,
            "time": 3.109692096710205,
            "dport": 1900,
            "sport": 53598
        }
    ],
    "dns_servers": [],
    "http": [],
    "icmp": [],
    "smtp": [],
    "tcp": [],
    "smtp_ex": [],
    "mitm": [],
    "hosts": [],
    "pcap_sha256": "75fd2c7ca044e1541a042a0a8b8fd78179f98ad7307bafa8b50c329bb0ca3a9e",
    "dns": [],
    "http_ex": [],
    "domains": [],
    "dead_hosts": [],
    "sorted_pcap_sha256": "e6e42542adc8a1f3749c8c2a03fccd8a5b1ae3ad7dea42f374d723b75f24b677",
    "irc": [],
    "https_ex": []
}

Screenshots

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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