LWA-2026-10457 MAL-2026-13330 ↗ confirmed malware

dolyame-boxy-independent-bnpl-swagger@35.6.8

Malicious code in dolyame-boxy-independent-bnpl-swagger (npm)

T1059 · Command and Scripting InterpreterT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1567 · Exfiltration Over Web ServiceT1059.007 · JavaScript

Analysis

On require, the package loads setup.js, which downloads a platform-specific binary from Cloudflare Workers endpoints (oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe. If those fail it retrieves a base64 payload via DNS TXT records from the wel1[.]ru domain (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) and executed as a detached background process via cmd.exe /c start /b or /bin/sh -c. This is a remote binary download-and-execute dropper that runs on every require.

analyzed by
Leitwacht
first seen
Aug 5, 2026, 04:20 PM
analyzed
Aug 5, 2026, 04:28 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.