{"id":"MAL-2026-13505","summary":"Malicious code in dolyame-ui-iconloaderhoc (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (812cef02743987901661dc22ace6c19fee82977c4bb73b05ee046698ad603932)\nOn require() of the package's main entry, dolyame-ui-iconloaderhoc@35.8.1 executes two dropper paths that fetch platform-specific binaries from hardcoded Cloudflare workers.dev endpoints (oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS-TXT fallback channel via subdomains of dl.wel1.ru, write the bytes to /var/tmp/.cache_\u003chex\u003e or %TEMP%\\dotnet_diag_\u003chex\u003e.exe, chmod them to 0755, and spawn them detached via /bin/sh -c or cmd.exe. Both _compat.js and lib/telemetry.js implement the fetch-write-chmod-spawn chain; lib/telemetry.js additionally assembles the payload from base64 chunks. Sinks and hostnames are constructed via array.join('') string-splitting (e.g. ['sdk.dl.','wel1.','ru'].join(''), require('child_' + 'process'), fs['chmod'+'Sync']) to defeat static scanners, while comments frame the behavior as analytics/telemetry. The delivered bytes are opaque, unpinned, and unverified, and the workers.dev / wel1.ru destinations are anonymous infrastructure unrelated to any documented publisher.\n","modified":"2026-08-07T12:35:09.250921615Z","published":"2026-08-07T12:13:18Z","database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-016889","import_time":"2026-08-07T12:23:25.866363301Z","modified_time":"2026-08-07T12:13:18Z","sha256":"812cef02743987901661dc22ace6c19fee82977c4bb73b05ee046698ad603932","source":"amazon-inspector","versions":["35.8.1"]}]},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/dolyame-ui-iconloaderhoc/v/35.8.1"}],"affected":[{"package":{"name":"dolyame-ui-iconloaderhoc","ecosystem":"npm","purl":"pkg:npm/dolyame-ui-iconloaderhoc"},"versions":["35.8.1"],"database_specific":{"cwes":[{"description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code","cweId":"CWE-506"}],"indicators":{"package_integrity":[{"filename":"dolyame-ui-iconloaderhoc-35.8.1.tgz","hashes":{"sha512_sri":"sha512-nEd+7Mk+zwuhDKYQcuso4nfil6KFLUfZSzR8tYlTry/MkOr+/XIeDDkzW7iMlQE3UJbqHaTAlfZIUXMm6n00Kw==","sha1":"d03f6ca1cf9550738ca6d8debdfeda4cab486c45"}}],"evidence_files":[{"tlsh":"b7a1a55a16fa70180792e5d9841f8816b09af98337c5d8c4fb4c66948feb128c3b29fc","path":"_compat.js","sha256":"9317fd2cad89807d51eda00a0805b050d3088e006589a8bf6cc69b42e1e43591"},{"tlsh":"f573304966fb1021826370685fbb40437635c4072a4aed5dba9c43ec9f8db3896f1fb9","path":"lib/telemetry.js","sha256":"838384c08f39772cde0881f9d6b9beb0c5f6e74b79b2e081d109668b8d8c99b4"}]},"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-iconloaderhoc/MAL-2026-13505.json"}}],"schema_version":"1.8.0","credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"}]}