{"id":"MAL-2026-13199","summary":"Malicious code in dolyame-ui-utils (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (899f518db368635c0c794a8097fc0af3a2c85f61cdb4dcfbd81b0cf85629f199)\nOn require of the package, _polyfill.js selects a platform-keyed URL, fetches an opaque binary over HTTPS from string-split-obfuscated Cloudflare Workers hosts (oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev) with a base64-chunked DNS-TXT fallback channel over *.dl.wel1.ru, writes it to /tmp/.cache_\u003chex\u003e or %TEMP%\\dotnet_diag_\u003chex\u003e.exe, chmods 0755, and spawns it detached via /bin/sh -c or cmd /c start. No hash or signature verification is performed and destinations are unrelated to the package publisher. lib/telemetry.js ships a parallel dropper implementation with additional evasion (split require(\"child_\"+\"process\"), dynamic fs[\"chmod\"+\"Sync\"]) as staged secondary payload. An analytics_state marker file and DISABLE_TELEMETRY env var provide cover framing.\n","modified":"2026-08-05T15:53:09.582846851Z","published":"2026-08-05T15:07:54Z","database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-015578","import_time":"2026-08-05T15:19:58.884294032Z","modified_time":"2026-08-05T15:07:54Z","sha256":"899f518db368635c0c794a8097fc0af3a2c85f61cdb4dcfbd81b0cf85629f199","source":"amazon-inspector","versions":["35.6.7"]}]},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/dolyame-ui-utils/v/35.6.7"}],"affected":[{"package":{"name":"dolyame-ui-utils","ecosystem":"npm","purl":"pkg:npm/dolyame-ui-utils"},"versions":["35.6.7"],"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":[{"tlsh":"ada1b76a06a670098bb0d7e5c6175416f65bf6637380d6d4fb9ca5880ff212483b2efc","path":"_polyfill.js","sha256":"b9c0388657ec00bc6063a2bec6da99db652ff397bc2f29f232f050bfa00e713e"},{"tlsh":"f5835056566a142186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc","path":"lib/telemetry.js","sha256":"62fc8c36118095891d653b6f904658f5c31f3b00ac36f24f34e92fa6d21dd245"}],"package_integrity":[{"hashes":{"sha1":"11682c1739644baabdd1011d45a531807d6c43a8","sha512_sri":"sha512-C04tFUw2YhVgTfrPvNH3jaE5CXkDgR23Tj000Xm9o+DG0UgeJJrVm4DSuBys25BBjbwzINuL7oHAt4ILd9yNuQ=="},"filename":"dolyame-ui-utils-35.6.7.tgz"}]},"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-utils/MAL-2026-13199.json"}}],"schema_version":"1.8.0","credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"}]}