{"schema_version":"1.8.0","id":"MAL-2026-12527","published":"2026-08-05T14:19:14Z","modified":"2026-08-05T14:34:58.940322377Z","summary":"Malicious code in cards-forms-credit-clone (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (2cf698916c071bb43228f0e40bbb5fc10c2c35c495e091c0b3d1cf1c10e8eb26)\nOn require('cards-forms-credit-clone'), index.js loads _compat.js which downloads a platform-specific binary from obfuscated Cloudflare workers.dev hosts assembled at runtime via string-split concatenation (e.g. ['oo','b-worker.c','f101-adf.workers.dev'].join('')), with a DNS-TXT base64 fallback resolver at sdk.dl.wel1.ru. The fetched binary is written to /var/tmp or %TEMP% under disguised names (.cache_<hex> / dotnet_diag_<hex>.exe), chmod 0755, and spawned detached via /bin/sh -c or cmd.exe. No pinning, no hash or signature verification; comments frame the behavior as 'analytics'/'telemetry'. Hostname fragmentation and DNS-TXT covert-channel resolution are evasion patterns unrelated to the package's advertised 'cards forms' purpose. Any installer that requires this package is subjected to remote code execution under attacker control.\n","affected":[{"package":{"name":"cards-forms-credit-clone","ecosystem":"npm","purl":"pkg:npm/cards-forms-credit-clone"},"versions":["35.9.5"],"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":"_compat.js","sha256":"f90a64bae7d7c56cd342fbb09aae6716985470d60740187f430d7dec9f10fcae","tlsh":"d7b1749a166a70198bb0a7e4c6175416f667f6a3338082c4fb5c65941f7313883b2efc"}],"package_integrity":[{"filename":"cards-forms-credit-clone-35.9.5.tgz","hashes":{"sha1":"ad539a70b45d3dbaaf8485358fba0c2d38716894","sha512_sri":"sha512-ngJOt72kqagU0eqUEzr5u8LbW+QaEjH6kT5Dr4HqK3xs/Y3FP04yubONdtaZe95Zwc8bey3jt+6NbjyuWBncjw=="}}]},"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/cards-forms-credit-clone/MAL-2026-12527.json"}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/cards-forms-credit-clone/v/35.9.5"}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-015254","import_time":"2026-08-05T14:20:17.005950982Z","modified_time":"2026-08-05T14:19:14Z","sha256":"2cf698916c071bb43228f0e40bbb5fc10c2c35c495e091c0b3d1cf1c10e8eb26","source":"amazon-inspector","versions":["35.9.5"]}]},"credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"}]}