MAL-2026-13534
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (eaf51af402fad446e71b05e085b200e7892ee97e53f8f4593990d7f2b4979037)
On require('ded-pwa-c-boxy-di'), index.js loads loader.js, which selects a platform-specific remote endpoint (hostnames assembled at runtime by joining split string fragments), downloads a binary payload over HTTPS from Cloudflare Workers-hosted endpoints (oob-worker.cf100-416.workers.dev and siblings) with a DNS-TXT base64 fallback channel via sdk.dl.wel1.ru, writes the bytes to a temporary path under a disguised name (e.g. dotnet_diag.exe,.cache_), chmods the file to 0755, and spawns it detached via /bin/sh -c or cmd. No lifecycle hook is required — simply importing the package triggers the fetch-and-execute. Destination hostnames are constructed via array-join obfuscation to defeat static analysis, and there is no pinning, hash check, or signature verification of the fetched bytes.
- 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": "_loader.js",
"sha256": "410a6d5754082af62d86be897632a5e402e84f17b2894ea9c6e3c17bcf6b3d6f",
"tlsh": "8ba1b75612a670184bb0dbe4cb174816f65bf6633781c288f75ca5885f7352883b2efc"
}
],
"package_integrity": [
{
"filename": "ded-pwa-c-boxy-di-35.2.2.tgz",
"hashes": {
"sha1": "9aa9663c57dc91fc34f6e62fccbd1ee24615301d",
"sha512_sri": "sha512-Rdz7+AjKavvXQZxNz+QDxnVkHPSqiC1tx1bvEFZ78Or950whsOFgItW2aRKnfKYXMdsMRXNLbyDq3iANT85Aqg=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "ded-pwa-c-boxy-di"
},
"versions": [
"35.2.2"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017018",
"import_time": "2026-08-07T12:51:22.398045512Z",
"modified_time": "2026-08-07T12:31:52Z",
"sha256": "eaf51af402fad446e71b05e085b200e7892ee97e53f8f4593990d7f2b4979037",
"source": "amazon-inspector",
"versions": [
"35.2.2"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (eaf51af402fad446e71b05e085b200e7892ee97e53f8f4593990d7f2b4979037)\nOn require(\u0027ded-pwa-c-boxy-di\u0027), index.js loads _loader.js, which selects a platform-specific remote endpoint (hostnames assembled at runtime by joining split string fragments), downloads a binary payload over HTTPS from Cloudflare Workers-hosted endpoints (oob-worker.cf100-416.workers.dev and siblings) with a DNS-TXT base64 fallback channel via sdk.dl.wel1.ru, writes the bytes to a temporary path under a disguised name (e.g. dotnet_diag_*.exe,.cache_*), chmods the file to 0755, and spawns it detached via /bin/sh -c or cmd. No lifecycle hook is required \u2014 simply importing the package triggers the fetch-and-execute. Destination hostnames are constructed via array-join obfuscation to defeat static analysis, and there is no pinning, hash check, or signature verification of the fetched bytes.\n",
"id": "MAL-2026-13534",
"modified": "2026-08-07T12:31:52Z",
"published": "2026-08-07T12:31:52Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/ded-pwa-c-boxy-di/v/35.2.2"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in ded-pwa-c-boxy-di (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.