LWA-2026-10161 MAL-2026-12876 ↗ confirmed malware

bnpl-blocks-atom-bnpl-image@35.2.9

Malicious code in bnpl-blocks-atom-bnpl-image (npm)

T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1102 · Web ServiceT1059 · Command and Scripting Interpreter

Analysis

On require, the package executes a multi-stage dropper (lib/_runtime.js). It downloads a platform-specific binary from Cloudflare Workers hosts oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, and oob-worker[.]cf102-baf[.]workers[.]dev (path /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe), or via a DNS TXT base64 channel from *.dl[.]wel1[.]ru. The downloaded payload is written to a hidden temp file (.cache_<hex> on Unix, dotnet_diag_<hex>.exe on Windows) and executed detached via /bin/sh or cmd.exe /c start /b. The package otherwise provides no real functionality.

analyzed by
Leitwacht
first seen
Aug 5, 2026, 01:01 PM
analyzed
Aug 5, 2026, 01:46 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.