MAL-2026-14342

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/coin-fees/MAL-2026-14342.json
JSON Data
https://api.test.osv.dev/v1/vulns/MAL-2026-14342
Published
2026-08-21T03:07:50Z
Modified
2026-08-21T05:01:52.424320259Z
Summary
Malicious code in coin-fees (npm)
Details

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

Source: amazon-inspector (f47c61fd59fb65dc8c8932e3e913dd83f18fc8af1d5f06b03cae327228821703)

package.json declares a postinstall hook that runs index.js on every install. The script hex-decodes and concatenates a hardcoded destination hostname resolving to gwfqp5cm9r2jfs3d6mjpzt8y5pbkzanz.oastify.com (a Burp Collaborator subdomain), then sleeps a randomized 30-120 seconds and issues HTTP POSTs on port 80 carrying: os.hostname, platform, arch, cwd, whoami/id/uname output, the contents of package.json, the full process.env, the contents of ~/.npmrc (which normally holds npm authToken values), npm root -g, local port scan results, and Windows recon (ver, tasklist, USERPROFILE). The payload exits silently when CI, GITHUBACTIONS, GITLABCI, JENKINSHOME, npm audit/pack/publish flags, /.dockerenv, or docker/kubepods cgroups are detected, and exports a benign-looking function as a facade. The exfiltrated ~/.npmrc auth tokens and environment variables give the operator credentials to publish malicious versions of the installer's other packages and to access CI cloud secrets.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-018490",
            "versions": [
                "20.1.1"
            ],
            "modified_time": "2026-08-21T03:07:50Z",
            "sha256": "f47c61fd59fb65dc8c8932e3e913dd83f18fc8af1d5f06b03cae327228821703",
            "import_time": "2026-08-21T03:26:10.350501272Z",
            "source": "amazon-inspector"
        }
    ]
}
References
Credits

Affected packages

npm / coin-fees

Package

Name
coin-fees
View open source insights on deps.dev
Purl
pkg:npm/coin-fees

Affected ranges

Affected versions

20.*
20.1.1

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "723a872c1dbe3eec92d37841ce093baa8f9c946e04c2621b5b37efed162ba8ef",
            "path": "index.js",
            "tlsh": "85b1949272fb9e70362261e583a3d0277726f0073508eac0ba4c9b46df9f60595d28f9"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-Mi60G1hgndIMcIcClVAu72KQrA/7mVuPPiLgA7kje+FGsrI7k0Gj/zTPL87wvVd+zYX8Myr63aQwKx8eud++Xw==",
                "sha1": "1d7c6c8d9e94e12fd59a4c7010ce6c793e51541a"
            },
            "filename": "coin-fees-20.1.1.tgz"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/coin-fees/MAL-2026-14342.json"
cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]