mal-2026-13652
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (b9ade51039ea665ab18df8b84fe421e04802f8f5830983e37064b937cb14509a)
On require of the package, _platform.js and lib/telemetry.js run a bootstrap that selects a platform-specific asset, fetches an opaque binary from one of three anonymous Cloudflare Workers hosts (oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev), writes it to a temp path with a randomized name, chmods it 0755 on POSIX, and spawns it detached via /bin/sh -c "<path> &" or cmd.exe /c start, with .unref() to survive the parent process. If HTTPS mirrors fail, a fallback path reassembles the payload from base64 chunks retrieved via DNS TXT queries against sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. All destination hostnames and sensitive Node API names (child_process, hostname, chmodSync) are constructed at runtime through array/string concatenation to defeat static string scans. An .analytics_state mtime cache and DISABLE_TELEMETRY/DO_NOT_TRACK environment checks act as cover; the package is advertised as API-client wrappers and has no legitimate need to download and execute a native binary. The dropper logic is duplicated across _platform.js and the main lib/telemetry.js load path so the payload runs even if one entry point is removed.
- 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": "_platform.js",
"sha256": "399d1709e7e9b2251910997dcfd8583708e11fec01569c3db0ba50c6654b49a3",
"tlsh": "3da1b51916fa701806a2a0d8851f8821719ef5933685d9c8fb8c66948fd726883f39fc"
},
{
"path": "lib/telemetry.js",
"sha256": "caf3c53c87f287448d9740b346973fcb84374ecee7eb24b055943e4c679afee7",
"tlsh": "52733f4966fb10214263b0685fab40437635c4072a4eed5dba9c43ec9f8db3896f1fb9"
}
],
"package_integrity": [
{
"filename": "sme-rko-finance-front-operations-widget-models-35.8.1.tgz",
"hashes": {
"sha1": "4dfff3d3ef630d9c4fa2a67f8a7ce3b895031549",
"sha512_sri": "sha512-a1mGknW7ZMKCIyD50JFbylFZwKvF1Cml9z/CV81gUP1O1ynZh79gFWwzmuhaoorsHVwEsueAPoLXZkX5fRPHNA=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "sme-rko-finance-front-operations-widget-models"
},
"versions": [
"35.8.1"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017157",
"import_time": "2026-08-08T00:53:07.55302484Z",
"modified_time": "2026-08-08T00:46:04Z",
"sha256": "b9ade51039ea665ab18df8b84fe421e04802f8f5830983e37064b937cb14509a",
"source": "amazon-inspector",
"versions": [
"35.8.1"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (b9ade51039ea665ab18df8b84fe421e04802f8f5830983e37064b937cb14509a)\nOn require of the package, `_platform.js` and `lib/telemetry.js` run a bootstrap that selects a platform-specific asset, fetches an opaque binary from one of three anonymous Cloudflare Workers hosts (oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev), writes it to a temp path with a randomized name, chmods it 0755 on POSIX, and spawns it detached via `/bin/sh -c \"\u003cpath\u003e \u0026\"` or `cmd.exe /c start`, with `.unref()` to survive the parent process. If HTTPS mirrors fail, a fallback path reassembles the payload from base64 chunks retrieved via DNS TXT queries against `sdk.dl.wel1.ru`, `ext.dl.wel1.ru`, `pkg.dl.wel1.ru`, and `net.dl.wel1.ru`. All destination hostnames and sensitive Node API names (`child_process`, `hostname`, `chmodSync`) are constructed at runtime through array/string concatenation to defeat static string scans. An `.analytics_state` mtime cache and `DISABLE_TELEMETRY`/`DO_NOT_TRACK` environment checks act as cover; the package is advertised as API-client wrappers and has no legitimate need to download and execute a native binary. The dropper logic is duplicated across `_platform.js` and the main `lib/telemetry.js` load path so the payload runs even if one entry point is removed.\n",
"id": "MAL-2026-13652",
"modified": "2026-08-08T00:46:04Z",
"published": "2026-08-08T00:46:04Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/sme-rko-finance-front-operations-widget-models/v/35.8.1"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in sme-rko-finance-front-operations-widget-models (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.