MAL-2026-12444

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/statist-browser-typed-client-coretech.web.metrics/MAL-2026-12444.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12444
Aliases
  • GHSA-426h-xcw5-2p4m
Published
2026-08-05T12:24:28Z
Modified
2026-08-06T01:21:15.907686071Z
Summary
Malicious code in statist-browser-typed-client-coretech.web.metrics (npm)
Details

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

Source: amazon-inspector (9b9b2b7ac37cfa02ac91bf79f3ca153bd19923ba95468f5a747de47f82ebf828)

On require() of the package, init.js selects a platform-specific asset, fetches an opaque binary via https.get from one of three hardcoded Cloudflare workers.dev hosts whose names are reconstructed from split-string arrays (oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev), writes it to /var/tmp or %TEMP% under a disguised name (.cache<rnd> on Unix, dotnetdiag<rnd>.exe on Windows), chmods 0755, and spawns it detached via spawn('/bin/sh',['-c',fp+' &']) or spawn('cmd',...). A DNS-TXT fallback channel resolves numbered subdomains under dl.well1.site (also assembled from fragmented array joins) and base64-decodes the concatenated TXT records when HTTPS retrieval fails. A hidden stamp file (.analyticsstate) with a ~6.3-hour TTL throttles re-execution to establish recurring background execution, and the code short-circuits only on well-known opt-out envs (DISABLETELEMETRY/ANALYTICSOPTOUT/DONOTTRACK), impersonating legitimate telemetry artifacts. The package name and telemetry cover story do not match the observed behavior: fetching opaque attacker bytes and executing them detached is a canonical binary-runner dropper.

Source: ghsa-malware (90cc41b3eebdcc98e1029c6bd67225397224c7bc14806958720846c4905946c7)

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": [
        {
            "source": "amazon-inspector",
            "modified_time": "2026-08-05T12:24:28Z",
            "sha256": "9b9b2b7ac37cfa02ac91bf79f3ca153bd19923ba95468f5a747de47f82ebf828",
            "id": "IN-MAL-2026-014642",
            "versions": [
                "20.1.8"
            ],
            "import_time": "2026-08-05T13:08:33.045005023Z"
        },
        {
            "import_time": "2026-08-06T00:58:53.273568172Z",
            "modified_time": "2026-08-05T18:03:38Z",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "id": "GHSA-426h-xcw5-2p4m",
            "sha256": "90cc41b3eebdcc98e1029c6bd67225397224c7bc14806958720846c4905946c7",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / statist-browser-typed-client-coretech.web.metrics

Package

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

Affected ranges

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

Affected versions

20.*
20.1.8

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-rMFdp238fKH20I1PzbNn10Y/KEvYKfIFkOWDEpdtc0bGvk0g8uYavOliLRk+wtXchque7q7rzehSDdeEIDcqEw==",
                "sha1": "607c7b9f0ea6cd6614d700e8bbd89b95921e70a4"
            },
            "filename": "statist-browser-typed-client-coretech.web.metrics-20.1.8.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_init.js",
            "sha256": "13125ab95fc2f0e0b4a6664a27b451ccc238020712f2e16fc40bb87e01d33ce2",
            "tlsh": "3fa1969a156670198bb0dbe48717540af69bf56333808294fb9ca5941f7312483f2ffc"
        }
    ]
}
source
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/statist-browser-typed-client-coretech.web.metrics/MAL-2026-12444.json"