MAL-2026-17776

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/pay-methods-kmf/MAL-2026-17776.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17776
Published
2026-10-11T13:53:06Z
Modified
2026-10-11T14:30:09Z
Summary
Malicious code in pay-methods-kmf (npm)
Details

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

Source: amazon-inspector (07a616a1db0408a0570000c6514224d22e71c3ecee0f08268b5dd9bc96761fd2)

pay-methods-kmf@100.100.102 is a trivial stub (empty index.js, manifest description 'Frontend utilities') that ships a prebuilt Linux x64 native addon at prebuilds/linux-x64/addon.node and loads it from postinstall.js via require('./prebuilds/linux-x64/addon.node'). On install the postinstall path performs two concurrent exfiltration channels: (1) a DNS beacon that resolves a subdomain of the form ..db4jlbku53082dmp0d7g3mffj7s7aordk.oast.me against an interactsh/OAST collector, encoding the installer hostname and package name into the DNS label; and (2) the native addon calls gethostname, getpwuid, and getenv and issues an HTTP POST to the hardcoded bare IPv4 endpoint http://64.181.165.115/dc with body shape 'h=&u=&p=&r=<npm_config_registry>', leaking the installer's hostname, username, package name, and configured npm registry URL (which may reveal internal/private registry hosts). The package ships no source for the binary, the compiled addon's symbol set (socket/connect/send/fork) is unrelated to any frontend utility, and both the OAST subdomain and the bare-IP POST endpoint are attacker-controlled infrastructure. Dependency-confusion-style version (100.100.102) and the registry-URL field in the exfil payload are consistent with internal-registry reconnaissance.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-021396",
            "import_time": "2026-10-11T14:18:02.165384269Z",
            "modified_time": "2026-10-11T13:53:06Z",
            "sha256": "07a616a1db0408a0570000c6514224d22e71c3ecee0f08268b5dd9bc96761fd2",
            "source": "amazon-inspector",
            "versions": [
                "100.100.102"
            ]
        },
        {
            "id": "IN-MAL-2026-021420",
            "import_time": "2026-10-11T14:18:04.16153773Z",
            "modified_time": "2026-10-11T13:56:46Z",
            "sha256": "d83e40860a0d1540222f76bb58c3dfc3f12e6258aff42d6f8eff747bcdf28c5c",
            "source": "amazon-inspector",
            "versions": [
                "100.100.100"
            ]
        },
        {
            "id": "IN-MAL-2026-021419",
            "import_time": "2026-10-11T14:18:04.090942774Z",
            "modified_time": "2026-10-11T13:56:38Z",
            "sha256": "f7a8a051b1961e3062a37b8ff1a9eb05025dc475bf1a5c694df49f0c90349c70",
            "source": "amazon-inspector",
            "versions": [
                "100.100.101"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / pay-methods-kmf

Package

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

Affected ranges

Affected versions

100.*
100.100.100
100.100.101
100.100.102

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"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "postinstall.js",
            "sha256": "c87a31c2ffd47105d39b97a9b2a13b65e811fa90c0491fd03ac8d52a53efa1f7",
            "tlsh": "c8f05c99efd1a394226335d884bf000578f3d1272d8ac1c831427ac20f712642723dd9"
        },
        {
            "path": "prebuilds/linux-x64/addon.node",
            "sha256": "1798796310908fa36529d480c1c8eb644195a9539cb574531b3eb3278458f1d5",
            "tlsh": "2972251bb361c93fc4e84334054b5a6572b6a4746b7313231f04a67e3ce27985e7aa8f"
        }
    ],
    "package_integrity": [
        {
            "filename": "pay-methods-kmf-100.100.102.tgz",
            "hashes": {
                "sha1": "a60e1287048b2b2acff868145247c68ddf29672a",
                "sha512_sri": "sha512-00rDVzDRKPt7CM2JbDGvKMXzOwDPBfPqJpzbF4xdnaH9KNcmd5PCRvRaUL/pksp0fY6gVrC7zebGRqfv90vR4w=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/pay-methods-kmf/MAL-2026-17776.json"