dolyame-boxy-independent-bnpl-video@35.4.4
Malicious code in dolyame-boxy-independent-bnpl-video (npm)
Analysis
On require, the package runs a multi-stage downloader. It fingerprints the OS/architecture, then downloads a second-stage 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 at path /pkg/package (platform variants /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe). If the HTTP download fails it falls back to a DNS-TXT exfiltration channel resolving base64 chunks from the wel1[.]ru domain family (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 the temp dir on Windows), made executable, and launched as a detached background process via cmd.exe /c start /b or /bin/sh -c '... &'.
- analyzed by
- Leitwacht
- first seen
- Aug 5, 2026, 04:19 PM
- analyzed
- Aug 5, 2026, 04:27 PM
Related advisories
- dolyame-boxy-independent-bnpl-table@35.3.4
- dolyame-boxy-atom-bnpl-dolyame-button@35.7.3
- devplatform-iam-client@35.5.6
- delivery-ci-validate@35.1.4
- devplatform-integrations-tests-lib@35.2.5
- delivery-ci-microforms@35.3.5
- devplatform-spa-plugin-query@35.8.5
- bnpl-blocks-atom-bnpl-navigation-arrow@35.2.6
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.