MAL-2026-17744

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/kmf-vendor-pack/MAL-2026-17744.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17744
Published
2026-10-09T15:49:57Z
Modified
2026-10-12T06:00:06Z
Summary
Malicious code in kmf-vendor-pack (npm)
Details

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (c6e1c289f2890e0e06ab31a8d6cf5dbc8deabc26054cb44a0c60295c29a74506)

kmf-vendor-pack@100.100.100 is a dependency-confusion lure. package.json declares postinstall: node postinstall.js, which require()s a shipped prebuilt Linux x64 N-API addon at prebuilds/linux-x64/addon.node. The addon's napi_register_module_v1 Init routine calls fork(), opens a socket, connects to the hardcoded bare IP 64.181.165.115, and sends POST /dc HTTP/1.0 with body h=<HOSTNAME>&p=<npm_package_name>&u=<user>&r=<npm_config_registry>, leaking the installing host's name, the resolved package name, and the configured npm registry URL to attacker infrastructure over plain TCP. The native binary ships with no accompanying C/C++ sources, no binding.gyp, and no legitimate functionality matching the stated Frontend utilities purpose; the JS entry point is an empty module.exports = {}. The version number 100.100.100 is implausibly high and consistent with resolution-winning against an internal package of the same name. Installing this package causes immediate outbound disclosure of install-environment and internal-registry metadata to the attacker.

Source: ossf-package-analysis (90252f22765869df637f77df2754cd36724812550151c9c7c53926bc83daad2e)

The OpenSSF Package Analysis project identified 'kmf-vendor-pack' @ 99.0.0 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.
Database specific 
{
    "iocs":  {
        "domains":  [
            "db4fe7a2e2lvaraia8k0n4amgw4ir83az.oast.pro"
        ],
        "files":  [
            {
                "digests":  {
                    "sha256":  "c00f5e4b31d7ff303956007a49d6758283a750fa6cb3a0a49eaa7cd330c0078a"
                },
                "note":  "postinstall script sends the hostname and OS username to an oast.pro out-of-band collector.",
                "paths":  [
                    "package.json"
                ],
                "source":  "PACKAGE_ARCHIVE"
            }
        ],
        "urls":  [
            "https://db4fe7a2e2lvaraia8k0n4amgw4ir83az.oast.pro/dc?pkg=kmf-vendor-pack&h="
        ]
    },
    "malicious-packages-origins":  [
        {
            "import_time":  "2026-10-09T16:20:00.871582705Z",
            "modified_time":  "2026-10-09T15:55:48Z",
            "sha256":  "90252f22765869df637f77df2754cd36724812550151c9c7c53926bc83daad2e",
            "source":  "ossf-package-analysis",
            "versions":  [
                "99.0.0"
            ]
        },
        {
            "id":  "IN-MAL-2026-021336",
            "import_time":  "2026-10-09T17:16:16.600140031Z",
            "modified_time":  "2026-10-09T16:53:57Z",
            "sha256":  "95ddc660098b1c73a1899ad3fe471b53ce562ca033669fa64622ff386d774129",
            "source":  "amazon-inspector",
            "versions":  [
                "99.0.0"
            ]
        },
        {
            "id":  "IN-MAL-2026-021417",
            "import_time":  "2026-10-11T14:18:03.888657998Z",
            "modified_time":  "2026-10-11T13:56:17Z",
            "sha256":  "f2805ea966820afc15ecfc2c876f4bc88c8b1a0e7e3899c385e850bb605cb9c2",
            "source":  "amazon-inspector",
            "versions":  [
                "100.100.101"
            ]
        },
        {
            "id":  "IN-MAL-2026-021427",
            "import_time":  "2026-10-11T14:18:04.680206044Z",
            "modified_time":  "2026-10-11T13:57:51Z",
            "sha256":  "c6e1c289f2890e0e06ab31a8d6cf5dbc8deabc26054cb44a0c60295c29a74506",
            "source":  "amazon-inspector",
            "versions":  [
                "100.100.100"
            ]
        },
        {
            "id":  "IN-MAL-2026-021401",
            "import_time":  "2026-10-11T14:18:02.586269204Z",
            "modified_time":  "2026-10-11T13:53:50Z",
            "sha256":  "da36b284f0e3c1150c401af2face61a158511258362b7f83a66438b1206eaf49",
            "source":  "amazon-inspector",
            "versions":  [
                "100.100.106"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / kmf-vendor-pack

Package

Name
kmf-vendor-pack
View open source insights on deps.dev
Purl
pkg:npm/kmf-vendor-pack

Affected ranges

Affected versions

99.*
99.0.0
100.*
100.100.100
100.100.101
100.100.106

Database specific

cwes 
[
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    },
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    },
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    },
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    },
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files":  [
        {
            "path":  "package.json",
            "sha256":  "c00f5e4b31d7ff303956007a49d6758283a750fa6cb3a0a49eaa7cd330c0078a",
            "tlsh":  "50e068f85535dab73dc412d88686a50bf1a2cd1a0004bc049be7238d4ad91f35bbe9a9"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "kmf-vendor-pack-99.0.0.tgz",
            "hashes":  {
                "sha1":  "e2e8a1b510ff4d08c1a4c2eb9323d6352c5725f9",
                "sha512_sri":  "sha512-zrmEJCRcINDZPd2ARMcbrgStgT9MzZdc5rS6cJjaPHulo0ghMQYdMOpo6akgrc6gl2jgpMtozatE3D58YI8M7w=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/kmf-vendor-pack/MAL-2026-17744.json"