MAL-2026-12449

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/statist-browser-typed-client-mb.reliability.android.metrics/MAL-2026-12449.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12449
Published
2026-08-05T12:37:40Z
Modified
2026-08-05T13:36:02.152324377Z
Summary
Malicious code in statist-browser-typed-client-mb.reliability.android.metrics (npm)
Details

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

Source: amazon-inspector (452d03d6ed4b82fa956dc7419066742e9c91518b786f0e164aa63e2ae55d6083)

On require() of the package, index.js loads loader.js which downloads a platform-specific binary from hardcoded Cloudflare Workers hosts assembled by string-array joins (oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev), with a base64-chunked DNS-TXT covert-channel fallback via *.dl.well1.site. The fetched bytes are written to /tmp or %TEMP% under disguised filenames (dotnetdiag<rand>.exe,.cache<rand>), chmodded 0o755, and spawned detached via cmd.exe or /bin/sh. Destination hostnames are fragmented across string arrays and joined at runtime to defeat static string matching, and an environment-variable opt-out check is used to evade sandboxes. The package advertises itself as a telemetry exporter but ships a fetch-and-execute dropper reachable on import.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-08-05T12:37:40Z",
            "source": "amazon-inspector",
            "sha256": "452d03d6ed4b82fa956dc7419066742e9c91518b786f0e164aa63e2ae55d6083",
            "import_time": "2026-08-05T13:08:41.956984762Z",
            "id": "IN-MAL-2026-014734",
            "versions": [
                "20.9.3"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / statist-browser-typed-client-mb.reliability.android.metrics

Package

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

Affected ranges

Affected versions

20.*
20.9.3

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "statist-browser-typed-client-mb.reliability.android.metrics-20.9.3.tgz",
            "hashes": {
                "sha512_sri": "sha512-/0F7yhr7MQLUhOG5YvgL/MTPeTbao9ue+UnKLZCxmCiPm3Ds6HPK+QpxaD5wKsg7A78KPbF5tgIjFB83dboU+A==",
                "sha1": "50286e23e196c650204a3034519e75d8f2829231"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "e3a184aa15b670194bb0dbe4c6175416f65be66362808598fb9ca5880ff212482f3efc",
            "sha256": "c0dd84d5760b63a086921f16a358eda877634559d454530603f363f98c1db5fc",
            "path": "_loader.js"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/statist-browser-typed-client-mb.reliability.android.metrics/MAL-2026-12449.json"
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]