{"id":"MAL-2026-13551","summary":"Malicious code in dolyame-boxy-independent-bnpl-faq (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (cf17b5bab6439a518226a8e3caf758974a9dd8846e587347ea33356c5f780a53)\nOn require of the package, index.js loads _runtime.js which selects a platform-specific binary path, downloads an opaque payload from string-array-obfuscated Cloudflare Workers hosts (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev), with a DNS-TXT fallback that reconstructs a base64 payload from numbered subdomains of *.dl.wel1.ru (e.g. sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru). The fetched bytes are written to /var/tmp/.cache_\u003cuid\u003e on *nix or %TEMP%\\dotnet_diag_\u003cuid\u003e.exe on Windows, chmod 0755, and spawned detached via /bin/sh -c or cmd.exe. Destination hostnames are assembled at runtime via array-join to defeat static string search; execution is gated by a TTL cache and opt-out env vars. The purported BNPL-FAQ purpose has no relationship to fetching and executing native binaries from anonymous worker hosts.\n","modified":"2026-08-07T13:20:28.225471339Z","published":"2026-08-07T12:25:15Z","database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-016973","import_time":"2026-08-07T12:51:20.468328255Z","modified_time":"2026-08-07T12:25:15Z","sha256":"cf17b5bab6439a518226a8e3caf758974a9dd8846e587347ea33356c5f780a53","source":"amazon-inspector","versions":["35.8.7"]}]},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/dolyame-boxy-independent-bnpl-faq/v/35.8.7"}],"affected":[{"package":{"name":"dolyame-boxy-independent-bnpl-faq","ecosystem":"npm","purl":"pkg:npm/dolyame-boxy-independent-bnpl-faq"},"versions":["35.8.7"],"database_specific":{"cwes":[{"description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code","cweId":"CWE-506"}],"indicators":{"evidence_files":[{"tlsh":"29b1975a16a671184bb09be4c61b4416f65bf663338092c4fb9ca5941f7353483b2efc","path":"_runtime.js","sha256":"35500f498153523abaa04e06c987139c829984327d01f3f1d40b2908303be7c7"}],"package_integrity":[{"filename":"dolyame-boxy-independent-bnpl-faq-35.8.7.tgz","hashes":{"sha512_sri":"sha512-IxRyJmiqcoNaKtFk/EwBUFvhekWv54+StqBTQhjAMrbVUEUfvnTdTFqq+tjfnQZg/zjconk/vJLqiQI/hxGq9g==","sha1":"83008e85f5f162e71ecfe4ee112d794c8f14c188"}}]},"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-boxy-independent-bnpl-faq/MAL-2026-13551.json"}}],"schema_version":"1.8.0","credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"}]}