mal-2026-13647
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (a26817ccf57c03ae447f3181ec0a18c3cf5a2bcd09da40cd8aaa3fa56446ab21)
On require/import, index.js loads./bootstrap and re-exports./lib/telemetry, both of which execute a download-and-execute dropper. _bootstrap.js reconstructs hardcoded hosts via array-join obfuscation (oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, with a DNS-TXT chunked fallback under *.dl.wel1.ru), fetches a platform-specific binary via https.get, writes it to /var/tmp or %TEMP% under a disguised name (.cache / dotnet_diag_.exe), chmods 0o755 on POSIX, and detached-spawns it via cp.spawn('/bin/sh',['-c', fp+' &'],{detached:true}).unref(). Sensitive APIs are also obfuscated (require('child_'+'process'), fs['chmod'+'Sync']) to evade string-based scanners, and markerFresh() rate-limits re-execution. lib/telemetry.js (the module actually exported from index.js) contains a parallel dropper that base64-decodes embedded chunks, writes them to disk, chmods 0o755 via the same obfuscated accessor, and detached-spawns them through /bin/sh. The package presents as "analytics" but ships two independent import-time RCE paths delivering attacker-controlled binaries from anonymous Cloudflare workers.dev endpoints and a Russian lookalike TLD, unpinned and unverified.
- 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": "_bootstrap.js",
"sha256": "5c0b910ea4506609085f8556bc58b690379d0249a9c84cb6e6336c21458ed87f",
"tlsh": "95a1a35a26fa30180793a1d9851f5816719bf65333c4d994fb4cb6885f9a238c3b3afc"
},
{
"path": "lib/telemetry.js",
"sha256": "6787007ba8159afe11203bd5b258f829e3164473569a685b071c58c9e2990e8e",
"tlsh": "a773304966fb10214263b0685fab40437635c4072a4eed5dba9c43ec9f8db3896f1fb9"
}
],
"package_integrity": [
{
"filename": "sme-rko-finance-front-operations-shared-35.8.1.tgz",
"hashes": {
"sha1": "b65378a9ca1e9a66f022b82581f088568b0b1038",
"sha512_sri": "sha512-Zo2xERNUF7o34HKxiU8cy8mlO4lKSFAFpNGlI0c7h+aMKwfHFsXZAEDN/JF15OPphxBCErnkB7iDCHbZ723Cgg=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "sme-rko-finance-front-operations-shared"
},
"versions": [
"35.8.1"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017146",
"import_time": "2026-08-08T00:53:06.790004853Z",
"modified_time": "2026-08-08T00:44:32Z",
"sha256": "a26817ccf57c03ae447f3181ec0a18c3cf5a2bcd09da40cd8aaa3fa56446ab21",
"source": "amazon-inspector",
"versions": [
"35.8.1"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (a26817ccf57c03ae447f3181ec0a18c3cf5a2bcd09da40cd8aaa3fa56446ab21)\nOn require/import, index.js loads./_bootstrap and re-exports./lib/telemetry, both of which execute a download-and-execute dropper. _bootstrap.js reconstructs hardcoded hosts via array-join obfuscation (oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, with a DNS-TXT chunked fallback under *.dl.wel1.ru), fetches a platform-specific binary via https.get, writes it to /var/tmp or %TEMP% under a disguised name (.cache_\u003crnd\u003e / dotnet_diag_\u003crnd\u003e.exe), chmods 0o755 on POSIX, and detached-spawns it via cp.spawn(\u0027/bin/sh\u0027,[\u0027-c\u0027, fp+\u0027 \u0026\u0027],{detached:true}).unref(). Sensitive APIs are also obfuscated (require(\u0027child_\u0027+\u0027process\u0027), fs[\u0027chmod\u0027+\u0027Sync\u0027]) to evade string-based scanners, and markerFresh() rate-limits re-execution. lib/telemetry.js (the module actually exported from index.js) contains a parallel dropper that base64-decodes embedded chunks, writes them to disk, chmods 0o755 via the same obfuscated accessor, and detached-spawns them through /bin/sh. The package presents as \"analytics\" but ships two independent import-time RCE paths delivering attacker-controlled binaries from anonymous Cloudflare workers.dev endpoints and a Russian lookalike TLD, unpinned and unverified.\n",
"id": "MAL-2026-13647",
"modified": "2026-08-08T00:44:32Z",
"published": "2026-08-08T00:44:32Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/sme-rko-finance-front-operations-shared/v/35.8.1"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in sme-rko-finance-front-operations-shared (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.