dolyame-boxy-independent-bnpl-documents@35.1.7
Malicious code in dolyame-boxy-independent-bnpl-documents (npm)
Analysis
On require, the package runs a multi-stage dropper. It fingerprints the platform/arch and downloads a platform-specific binary over HTTPS from Cloudflare Workers endpoints oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, and oob-worker[.]cf101-adf[.]workers[.]dev (paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe). If HTTPS is blocked it falls back to a DNS TXT chunked base64 transfer from c[.]sdk[.]dl[.]wel1[.]ru (and sdk[.]dl[.]wel1[.]ru / ext[.]dl[.]wel1[.]ru / pkg[.]dl[.]wel1[.]ru / net[.]dl[.]wel1[.]ru). The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in TEMP on Windows), made executable, and launched as a detached background process (cmd.exe start /b on Windows, /bin/sh -c '... &' on POSIX) so it outlives the parent. A stamp file at /tmp/.analytics_state throttles re-downloads.
- analyzed by
- Leitwacht
- first seen
- Aug 5, 2026, 04:38 PM
- analyzed
- Aug 5, 2026, 04:52 PM
Related advisories
- dolyame-boxy-independent-bnpl-code-text@35.7.8
- dolyame-boxy-independent-bnpl-items@35.3.5
- devplatform-spa-feature-toggle@35.8.4
- devplatform-supafetch@35.2.1
- devplatform-spa-tokens@35.3.1
- devplatform-utils@35.5.2
- devplatform-spa-plugin-s3-feature-toggle@35.7.1
- devplatform-spa-plugin-ability@35.5.2
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.