MAL-2026-12448

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/statist-browser-typed-client-mb.product.operations/MAL-2026-12448.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12448
Published
2026-08-05T12:34:58Z
Modified
2026-08-05T13:36:01.840273493Z
Summary
Malicious code in statist-browser-typed-client-mb.product.operations (npm)
Details

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

Source: amazon-inspector (e8cd571b2f151fe07ba9e4be24c62290f79b73880ec1da77324b192a1b3af24f)

index.js unconditionally requires./bridge on module load. bridge.js selects an OS/arch-specific payload URL from string-array-concatenated hostnames (oob-worker.cf101-adf.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev), downloads a binary over HTTPS with a DNS TXT chunked-base64 fallback via *.dl.well1.site, writes it to /var/tmp or %TEMP% under a disguised name (dotnetdiag<hex>.exe /.cache<hex>), chmods it 0755, and detached-spawns it via /bin/sh -c "<path> &" or cmd.exe /c start /b. No hash or signature verification. Destination hostnames are assembled at runtime by joining split string arrays to evade static analysis, and a written state file plus environment-variable opt-outs (DISABLETELEMETRY, ANALYTICSOPTOUT, DONOTTRACK) and comments referencing "SHA-256 integrity check" and "session tracking" frame the drop as telemetry, which does not match the package's stated Operations SDK purpose.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-08-05T12:34:58Z",
            "source": "amazon-inspector",
            "sha256": "e8cd571b2f151fe07ba9e4be24c62290f79b73880ec1da77324b192a1b3af24f",
            "import_time": "2026-08-05T13:08:40.163127489Z",
            "id": "IN-MAL-2026-014715",
            "versions": [
                "20.4.9"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / statist-browser-typed-client-mb.product.operations

Package

Name
statist-browser-typed-client-mb.product.operations
View open source insights on deps.dev
Purl
pkg:npm/statist-browser-typed-client-mb.product.operations

Affected ranges

Affected versions

20.*
20.4.9

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "statist-browser-typed-client-mb.product.operations-20.4.9.tgz",
            "hashes": {
                "sha512_sri": "sha512-8qzWoA3p9f/CKxnSSmgz+jcoTXRBoVnB8yqfu5XV22GN421MQf0i7yAI3prLSKBqJvJKnduXMSdgkeFqSjlQBA==",
                "sha1": "c86a14b160afec7de2c2c877061ed43ffc38929a"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "79b1865615aa701d8bf0e7e08717581af65be6633380c2d8fb6c94945f7216483b2efc",
            "sha256": "0dc0ff57fcbc1d0013f96006b136024cfe242c781aca191f240aa8878f28ce7c",
            "path": "_bridge.js"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/statist-browser-typed-client-mb.product.operations/MAL-2026-12448.json"
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]