dolyame-boxy-stories-of-block

{"modified":"2026-08-05T15:17:50Z","published":"2026-08-05T15:17:50Z","schema_version":"1.7.4","id":"MAL-2026-13132","summary":"Malicious code in dolyame-boxy-stories-of-block (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (1e18c95ca0abb6765cd4e9eb0ac8661962453f51c14d55902402a3b861d8ff16)\nOn require() of the package's main entry, index.js unconditionally loads _support.js, which reconstructs hostnames from split-string arrays (e.g. ['oob-worker.cf99-9b3.worker','s.dev'].join('') and ['sdk.dl.wel','1.ru'].join('')), fetches a platform-specific binary over HTTPS from Cloudflare Workers subdomains (oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev) and *.dl.wel1.ru endpoints with a DNS-TXT chunked fallback, writes it to /tmp/.cache_<rnd> on Unix or %TEMP%\\dotnet_diag_<rnd>.exe on Windows, chmods it 0755, and spawns it detached via cp.spawn('/bin/sh',['-c', fp+' &'],{detached:true}).unref() or cmd /c start. No hash or signature verification is performed despite a comment claiming SHA-256 integrity. The dropped filename and marker file (.analytics_state) mimic system artifacts, and DISABLE_TELEMETRY / DO_NOT_TRACK env-var checks provide a benign 'analytics SDK' cover story. A second dropper module at lib/telemetry.js (~81KB) implements the same fetch/chmod/spawn shape with base64-decoded payload chunks and endpoint rotation.\n","affected":[{"package":{"ecosystem":"npm","name":"dolyame-boxy-stories-of-block"},"versions":["35.8.6"],"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":"_support.js","sha256":"0bd0d7b1b1be56397cf8365351e3fbc9cb1765b973de0a715111f5d6a3a5721c","tlsh":"b5a1a5aa266971184bb0ebf4c6274415f556f66333c0c6c8f79c69981fb213482b2efc"},{"path":"lib/telemetry.js","sha256":"f2b4b3525d8e2780a19fac90261832308ed91b30977c016d031b51177b713adc","tlsh":"a8835056566a142186b2b378df234107ff3685272642429dbafc82dc1fbd72092a5ffc"}],"package_integrity":[{"filename":"dolyame-boxy-stories-of-block-35.8.6.tgz","hashes":{"sha1":"c75faf6851c46b3592b6d9267a30d1a7a72c3c41","sha512_sri":"sha512-PjmOtEU+Tq8UfEEXHZYHLnbmnTXuyTXu69mjHQCHsYQHw7OjAOA29iegNYj9G31UkNSFfmMPw6zMfKGxSp039g=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/dolyame-boxy-stories-of-block/v/35.8.6"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-015642","import_time":"2026-08-05T15:20:01.327102927Z","modified_time":"2026-08-05T15:17:50Z","sha256":"1e18c95ca0abb6765cd4e9eb0ac8661962453f51c14d55902402a3b861d8ff16","source":"amazon-inspector","versions":["35.8.6"]}]}}