bnpl-blocks-desktop-bnpl-documents@20.7.2
Malicious code in bnpl-blocks-desktop-bnpl-documents (npm)
Analysis
On require(), the package executes setup.js which fingerprints the host platform and architecture, then downloads a binary payload from Cloudflare Workers C2 endpoints (oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev) over HTTPS, with a DNS TXT-based fallback channel via c[.]tin[.]dl[.]well1[.]site. The downloaded binary is written to /tmp/.cache_<hex> (Linux/macOS) or %TEMP%\dotnet_diag_<hex>.exe (Windows) and spawned as a detached background process. A stamp file at /tmp/.analytics_state or %TEMP%\analytics_state prevents re-downloading within approximately 6 hours.
- analyzed by
- Leitwacht
- first seen
- Aug 2, 2026, 03:14 PM
- analyzed
- Aug 2, 2026, 03:15 PM
Related advisories
- pfp-forms-sme-loan@20.2.1
- bigops-chat-messages@19.9.8
- prokit-core@20.6.6
- lifestyle-test-utils@20.7.2
- statist-browser-typed-client-twork.tsales.nitro.metrics@20.6.2
- tui-react-mobile-styles@20.8.7
- tinkoff-fb-service-prefill-profile-contact@20.2.3
- statist-browser-typed-client-mb.product.operations@20.4.9
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.