MAL-2026-13532
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (c88783bd76d9572c7374272991386daf62532972933bd87e24294bdb6c83d29e)
On require() of the package, index.js loads helpers.js which downloads a platform-specific binary from attacker-controlled Cloudflare Workers endpoints (oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS-TXT fallback to *.dl.wel1.ru. The destination hostnames are assembled via array.join('') string-splitting to evade static indicator scanning. The fetched payload is written to /tmp or %TEMP% under a disguised filename (.cache on Unix, dotnet_diag_.exe on Windows), chmod'd 0755, and spawned detached via spawn('/bin/sh', ['-c', fp+' &'], {detached:true}) or spawn('cmd',...). There is no hash or signature verification of the downloaded binary; the destinations are not publisher-controlled; opt-out is disguised as a generic DISABLE_TELEMETRY environment variable. The dropper is reachable from the package main entry at import time, so a plain npm install followed by any require() of the package executes attacker-controlled native code on the installer's host.
- 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": "_helpers.js",
"sha256": "82824b061a6f8e7b3886fdd474890449b8c5146b14f701fcaa449d213626a3fd",
"tlsh": "e7a1989a1265b0188bb0ebe0c7179816f667f6633681c1d4f79c59844fb35248372efc"
}
],
"package_integrity": [
{
"filename": "ded-pwa-bnpl-forms-test-demo-35.7.8.tgz",
"hashes": {
"sha1": "e7f58e7ba2a042d67d22b14f56617ffc7abd00c0",
"sha512_sri": "sha512-hyeamEloD/iq7bKPL7zTWOlfypF43Cr0MYOqio2XQHc6bPtPTw7MoXHGpdDu8pAilxpR3iRInU9KUVGOcD+hew=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "ded-pwa-bnpl-forms-test-demo"
},
"versions": [
"35.7.8"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017022",
"import_time": "2026-08-07T12:51:22.558290298Z",
"modified_time": "2026-08-07T12:32:27Z",
"sha256": "c88783bd76d9572c7374272991386daf62532972933bd87e24294bdb6c83d29e",
"source": "amazon-inspector",
"versions": [
"35.7.8"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (c88783bd76d9572c7374272991386daf62532972933bd87e24294bdb6c83d29e)\nOn require() of the package, index.js loads _helpers.js which downloads a platform-specific binary from attacker-controlled Cloudflare Workers endpoints (oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS-TXT fallback to *.dl.wel1.ru. The destination hostnames are assembled via array.join(\u0027\u0027) string-splitting to evade static indicator scanning. The fetched payload is written to /tmp or %TEMP% under a disguised filename (.cache_\u003chex\u003e on Unix, dotnet_diag_\u003chex\u003e.exe on Windows), chmod\u0027d 0755, and spawned detached via spawn(\u0027/bin/sh\u0027, [\u0027-c\u0027, fp+\u0027 \u0026\u0027], {detached:true}) or spawn(\u0027cmd\u0027,...). There is no hash or signature verification of the downloaded binary; the destinations are not publisher-controlled; opt-out is disguised as a generic DISABLE_TELEMETRY environment variable. The dropper is reachable from the package main entry at import time, so a plain `npm install` followed by any `require()` of the package executes attacker-controlled native code on the installer\u0027s host.\n",
"id": "MAL-2026-13532",
"modified": "2026-08-07T12:32:27Z",
"published": "2026-08-07T12:32:27Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/ded-pwa-bnpl-forms-test-demo/v/35.7.8"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in ded-pwa-bnpl-forms-test-demo (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.