LWA-2026-10391 MAL-2026-12994 ↗ confirmed malware

bnpl-blocks-mobile-bnpl-image-with-caption@35.3.6

Malicious code in bnpl-blocks-mobile-bnpl-image-with-caption (npm)

T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1102 · Web ServiceT1059 · Command and Scripting InterpreterT1082 · System Information Discovery

Analysis

On require, this package (a fake "native bridge") executes a multi-stage dropper. It downloads a binary from Cloudflare Workers hosts oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, and oob-worker[.]cf102-baf[.]workers[.]dev at /pkg/package (or /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe depending on platform), with a fallback DNS TXT exfiltration channel via c[.]sdk[.]dl[.]wel1[.]ru. The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe on Windows), made executable, and launched as a detached background process via /bin/sh -c "<path> &" or cmd.exe /c start /b. A rate-limit stamp file .analytics_state is written to /tmp to limit re-execution.

analyzed by
Leitwacht
first seen
Aug 5, 2026, 01:41 PM
analyzed
Aug 5, 2026, 04:03 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.