mal-2026-13648
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (3a7bfbc55631ce8b054b20444bf1e335244c998fcf00d1709f951b1afa4cb242)
On require() of the package, index.js loads support.js which downloads a platform-specific binary from string-concatenated cloudflare workers.dev subdomains (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS TXT chunked-transfer fallback to *.dl.wel1.ru. The payload is written to /tmp with a hidden name (.cache) or to %TEMP% as dotnet_diag_.exe on Windows, chmodded 0755, and spawned detached via /bin/sh -c or cmd. The declared main module lib/telemetry.js contains a duplicate dropper path under an 'analytics SDK' cover story, base64-decoding transport chunks before executing the resulting binary the same way. C2 host names and dangerous API names (child_process, chmodSync) are constructed at runtime via array-join and string concatenation to defeat static analysis. Both dropper paths fire at library load time on any require of the package.
- CWE-506 - The product contains code that appears to be malicious in nature.
{
"affected": [
{
"database_specific": {
"cwes": [
{
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code"
}
],
"indicators": {
"evidence_files": [
{
"path": "_support.js",
"sha256": "013e10cd714cad9c62b44aee63e1741b2b300b96af5c211a47c34b58f1352f67",
"tlsh": "95a1a65916fa70180792e5d4841f5826709af69372c4e9c4fb4c66888fda138c3f3afc"
},
{
"path": "lib/telemetry.js",
"sha256": "2b8e0f2982c4ab7fe4d6d1214a221fba4a5e2a367b8708d5c7fafc77df7d429c",
"tlsh": "2c733f4966fb10214263b0685fab40437635c4072a4eed5dba9c43ec9f8db3896f1fb9"
}
],
"package_integrity": [
{
"filename": "sme-rko-finance-front-operations-special-payments-35.8.1.tgz",
"hashes": {
"sha1": "2aaa9932dc2960012c51ef7da3b9ff4e2d2eadef",
"sha512_sri": "sha512-QJh8VZqRC8JONmGpiMpJLpt05e6d6yt+uzBHQm1BLiDn66A98DV2WaVJZXXBzd1qu8imWm+nSk3KbMECUxubQw=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "sme-rko-finance-front-operations-special-payments"
},
"versions": [
"35.8.1"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017151",
"import_time": "2026-08-08T00:53:07.133581966Z",
"modified_time": "2026-08-08T00:45:15Z",
"sha256": "3a7bfbc55631ce8b054b20444bf1e335244c998fcf00d1709f951b1afa4cb242",
"source": "amazon-inspector",
"versions": [
"35.8.1"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (3a7bfbc55631ce8b054b20444bf1e335244c998fcf00d1709f951b1afa4cb242)\nOn require() of the package, index.js loads _support.js which downloads a platform-specific binary from string-concatenated cloudflare workers.dev subdomains (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS TXT chunked-transfer fallback to *.dl.wel1.ru. The payload is written to /tmp with a hidden name (.cache_\u003chex\u003e) or to %TEMP% as dotnet_diag_\u003chex\u003e.exe on Windows, chmodded 0755, and spawned detached via /bin/sh -c or cmd. The declared main module lib/telemetry.js contains a duplicate dropper path under an \u0027analytics SDK\u0027 cover story, base64-decoding transport chunks before executing the resulting binary the same way. C2 host names and dangerous API names (child_process, chmodSync) are constructed at runtime via array-join and string concatenation to defeat static analysis. Both dropper paths fire at library load time on any require of the package.\n",
"id": "MAL-2026-13648",
"modified": "2026-08-08T00:45:15Z",
"published": "2026-08-08T00:45:15Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/sme-rko-finance-front-operations-special-payments/v/35.8.1"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in sme-rko-finance-front-operations-special-payments (npm)"
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.