LWA-2026-10377 MAL-2026-13310 ↗ confirmed malware

dolyame-boxy-desktop-bnpl-title@35.6.5

Malicious code in dolyame-boxy-desktop-bnpl-title (npm)

T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1102 · Web ServiceT1573 · Encrypted ChannelT1082 · System Information Discovery

Analysis

On require, the package loads a bundled dropper (_init.js) that downloads a platform-specific binary payload over HTTPS from Cloudflare Workers endpoints (oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe). If the HTTP fetch fails it falls back to DNS-tunneling: a TXT query to c[.]sdk[.]dl[.]wel1[.]ru returns a chunk count, then base64 payload chunks are reassembled from N[.]sdk[.]dl[.]wel1[.]ru TXT records. The downloaded binary is written to /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 "... &". The package also ships a large unused telemetry module as decoy content.

analyzed by
Leitwacht
first seen
Aug 5, 2026, 02:03 PM
analyzed
Aug 5, 2026, 03:58 PM

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Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.