-= Per source details. Do not edit below this line.=-
On require() of the package, index.js loads runtime.js, which assembles Cloudflare Workers hostnames (oob-worker.cf102-baf.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev) and DNS-TXT fallback hosts under dl.wel1.ru (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru) from split-and-joined string fragments to conceal them from static analysis. It fetches a platform-specific executable payload from those hosts, writes it to a randomly-named file in /tmp or %TEMP% with cover-story names (dotnetdiag<rnd>.exe,.cache<rnd>,.analyticsstate), chmods it 0755 on Unix, and spawns it detached via /bin/sh -c or cmd /c start. The tarball also ships lib/telemetry.js, an ~81KB unreferenced sibling module implementing the same fetch-write-chmod-spawn pattern with base64-reconstructed payload bytes and string-concatenated 'child'+'process' / 'chmod'+'Sync' references. The package's declared purpose as a BNPL text-block UI helper has no relationship to the observed dropper behavior.
{
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-015656",
"import_time": "2026-08-05T16:13:28.893549874Z",
"sha256": "0d558b476b362ab912d18912a13c79e326b5fcdcdbe73b0f292d94aa89ac732d",
"versions": [
"35.5.3"
],
"source": "amazon-inspector",
"modified_time": "2026-08-05T15:19:52Z"
}
]
}[
{
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code",
"cweId": "CWE-506"
}
]
{
"evidence_files": [
{
"path": "_runtime.js",
"tlsh": "53a1a46a05a671188bb0dbe4c6175416f65bf66333808198fbac65980fb212483b3efc",
"sha256": "2606b886248a95e65506bb04c4f66084b4c91493dcba025e3a77a6de0bcf0509"
},
{
"path": "lib/telemetry.js",
"tlsh": "9f835056566a142186b2b368df234107ff3685272642429dbafc82dc1fbd72092a5ffc",
"sha256": "e30c8e60fb33ab0d88523af63d0ee1fde0d256f6806e7b194f777025c591320d"
}
],
"package_integrity": [
{
"filename": "dolyame-boxy-independent-bnpl-text-block-35.5.3.tgz",
"hashes": {
"sha512_sri": "sha512-beKthuoFoDPEZqBk7b/YCNo+9OVjHCCnji6Fcvx63zb5PB0fgLmgBfzDwU2HGOVkkOR2/MCnD8BIlF5o5khC/Q==",
"sha1": "8407814baae9045091e36b1229475469210adb83"
}
}
]
}
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-boxy-independent-bnpl-text-block/MAL-2026-13332.json"