bigops-products-bnpl

{"modified":"2026-08-05T15:35:53Z","published":"2026-08-05T15:35:53Z","schema_version":"1.7.4","id":"MAL-2026-13238","summary":"Malicious code in bigops-products-bnpl (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (79495f4d434b2f860f25315bc4c035d0db6956c8184ccb9a8068d1f6a4a15673)\nOn `require('bigops-products-bnpl')`, index.js loads _runtime.js, which selects a platform-specific endpoint and downloads an opaque binary from one of four hardcoded Cloudflare Workers hosts (oob-worker.cf101-*.workers.dev, oob-worker.cf102-*.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev) with a DNS-TXT base64 fallback via *.dl.wel1.ru. The downloaded bytes are written under a disguised name (e.g. dotnet_diag_*.exe,.cache_*) to /tmp or %TEMP%, chmod'd 0o755, and spawned detached via /bin/sh -c or cmd.exe. Destination hostnames are assembled from split string fragments joined with.join('') to evade static analysis, and a.analytics_state marker file is written to avoid re-running. No hash or signature verification is performed, the hosts are anonymous mutable Cloudflare Workers unrelated to the package's stated 'bnpl wrapper' purpose, and comments frame the code as 'telemetry'/'CDN'/'analytics' as cover. The result is arbitrary attacker-controlled code execution on the installer's machine as a side effect of loading the package.\n","affected":[{"package":{"ecosystem":"npm","name":"bigops-products-bnpl"},"versions":["35.2.9"],"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":"_runtime.js","sha256":"b3b00117a03ed19250b29883b1ca9420eadb446bbf10075264e39cccaefce2f6","tlsh":"e0b1869a16a670094bb0ebe4c7179826f567f66337818284f79c95884f7352483b2efc"}],"package_integrity":[{"filename":"bigops-products-bnpl-35.2.9.tgz","hashes":{"sha1":"16313488ce237700ef8fd0a68467cddb0189930f","sha512_sri":"sha512-95kT2LmLcbveFrmX/v5FKE2Iq+6PgLutZepKo+r4gGvpvRKiRcZCqnXLKIa9nmJQliVGKvBWOQlv4W0sTcSKrw=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/bigops-products-bnpl/v/35.2.9"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-015760","import_time":"2026-08-05T16:13:42.041181479Z","modified_time":"2026-08-05T15:35:53Z","sha256":"79495f4d434b2f860f25315bc4c035d0db6956c8184ccb9a8068d1f6a4a15673","source":"amazon-inspector","versions":["35.2.9"]}]}}