MAL-2026-12447

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/statist-browser-typed-client-mb.product.mclaccount/MAL-2026-12447.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12447
Aliases
  • GHSA-jgcr-c5v4-547r
Published
2026-08-05T12:46:35Z
Modified
2026-08-06T01:21:18.299753138Z
Summary
Malicious code in statist-browser-typed-client-mb.product.mclaccount (npm)
Details

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

Source: amazon-inspector (1381b3c1cd52acc110406d4609b7afea6e0681e3fe1259fcff0cd0a819aacabc)

On require, index.js loads loader.js which selects a platform-specific binary path, fetches bytes from obfuscated Cloudflare Workers endpoints (oob-worker.cf102-baf.workers.dev, cf100-416/cf103-070/cf99-9b3.workers.dev) with a DNS TXT-record fallback channel across numbered subdomains of dl.well1.site (tin, tina, ldr, win) that reassembles a base64 payload. The downloaded bytes are written to /tmp or %TEMP% under disguised names (.cache<rand>, dotnetdiag<rand>.exe), chmod'd to 0755, and spawned detached via /bin/sh -c or cmd.exe /c start. Hostnames and API names are reconstructed via split-string joins (e.g. ['tin.','dl.well1.si','te'].join(''), require('child_'+'process')) to evade static analysis. A parallel implementation of the same dropper is shipped as lib/telemetry.js under an 'analytics SDK' cover story, with identical DNS-TXT reassembly, chmod 0755, and detached /bin/sh execution.

Source: ghsa-malware (21bc192595c845c8870559d0575b69c158b6441912ceed68a263730b683d180a)

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-08-05T13:08:44.060160745Z",
            "modified_time": "2026-08-05T12:46:35Z",
            "sha256": "1381b3c1cd52acc110406d4609b7afea6e0681e3fe1259fcff0cd0a819aacabc",
            "id": "IN-MAL-2026-014756",
            "versions": [
                "20.2.6"
            ],
            "source": "amazon-inspector"
        },
        {
            "source": "ghsa-malware",
            "modified_time": "2026-08-05T18:43:38Z",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "id": "GHSA-jgcr-c5v4-547r",
            "sha256": "21bc192595c845c8870559d0575b69c158b6441912ceed68a263730b683d180a",
            "import_time": "2026-08-06T00:58:53.404364476Z"
        }
    ]
}
References
Credits

Affected packages

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

Package

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

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

20.*
20.2.6

Database specific

cwes 
[
    {
        "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."
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-vJsKOAJ0dnF5QzSDskCrZXm7VDr2SxEIW+llfmSOClQjcO8oV/OeGQ7zCrsmRZ0XFaJzIucdsWEvGmgLo0iucA==",
                "sha1": "cb75da460485c369e6dfd69a56520dd14a5e64b6"
            },
            "filename": "statist-browser-typed-client-mb.product.mclaccount-20.2.6.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_loader.js",
            "sha256": "1621de8615bce768b7f949e6b2adf48d1791ae22da85a41c31ecac42b47a69d0",
            "tlsh": "96a1969a166a711d4bb0e7e5d617441af65af253338082c0fb9ca5985f7313483b2efc"
        },
        {
            "path": "lib/telemetry.js",
            "sha256": "5c131929ae736a819eb0d0ba50309fabecf19ce7e6acea45559d81010b0f345b",
            "tlsh": "b6835056566a102186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/statist-browser-typed-client-mb.product.mclaccount/MAL-2026-12447.json"