ded-pwa-bnpl-forms-test-demo@35.7.8
Malicious code in ded-pwa-bnpl-forms-test-demo (npm)
Analysis
On require, the package downloads and executes a second-stage binary. It fingerprints the OS/architecture and fetches a platform-specific payload over HTTPS from oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, and oob-worker[.]cf103-070[.]workers[.]dev at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, and /pkg/package.exe, with a DNS-TXT base64 fallback channel via the *.dl[.]wel1[.]ru domain family (c[.]sdk[.]dl[.]wel1[.]ru, 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 under the Windows temp dir), made executable, and launched as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c '... &' on Unix).
- analyzed by
- Leitwacht
- first seen
- Aug 7, 2026, 07:13 AM
- analyzed
- Aug 7, 2026, 07:14 AM
Related advisories
- ded-pwa-c-mapping@35.8.7
- ded-pwa-c-cms@35.9.9
- ded-pwa-ded-pwa-core@35.6.3
- ded-pwa-test-pub-pkg@35.8.4
- ded-pwa-c-page-maker-props@35.7.7
- ded-pwa-c-micro@35.8.3
- delivery-ci-codeceptjs@35.1.7
- delivery-ci-cli@35.3.5
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.