LWA-2026-10471 MAL-2026-12904 ↗ confirmed malware

bnpl-blocks-atom-icon-loader@35.4.7

Malicious code in bnpl-blocks-atom-icon-loader (npm)

T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1071.004 · DNST1059 · Command and Scripting InterpreterT1082 · System Information Discovery

Analysis

bnpl-blocks-atom-icon-loader@35.4.7 is a trojanized loader. Requiring the package runs _compat.js, which downloads a platform-specific binary from Cloudflare Workers mirror hosts (oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe. If the HTTPS fetch fails it falls back to a DNS TXT chunked-transfer channel via sdk[.]dl[.]wel1[.]ru, ext[.]dl[.]wel1[.]ru, pkg[.]dl[.]wel1[.]ru, and net[.]dl[.]wel1[.]ru. The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe on Windows), made executable, and launched detached via /bin/sh -c "<path> &" or cmd.exe /c start /b. The package performs remote binary download and execution on install/require.

analyzed by
Leitwacht
first seen
Aug 5, 2026, 04:18 PM
analyzed
Aug 5, 2026, 04:30 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.