LWA-2026-10201 MAL-2026-13284 ↗ confirmed malware

dolyame-boxy-atom-bnpl-card@35.5.5

Malicious code in dolyame-boxy-atom-bnpl-card (npm)

T1195.002 · Compromise Software Supply ChainT1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1102 · Web ServiceT1573 · Encrypted ChannelT1082 · System Information Discovery

Analysis

On require, this package downloads and executes a remote binary. It fingerprints the OS/architecture and fetches a platform-specific payload over HTTPS from Cloudflare Workers endpoints oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, and oob-worker[.]cf103-070[.]workers[.]dev at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, and /pkg/package.exe. If the HTTPS download fails, it falls back to a DNS TXT-based channel under the wel1[.]ru domain (c[.]sdk[.]dl[.]wel1[.]ru, c[.]ext[.]dl[.]wel1[.]ru, c[.]pkg[.]dl[.]wel1[.]ru, c[.]net[.]dl[.]wel1[.]ru) that reassembles a base64-encoded payload from chunked TXT records. The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in the temp directory on Windows), made executable, and launched as a detached background process via /bin/sh -c "<path> &" or cmd.exe /c start /b. A marker file at /tmp/.analytics_state throttles re-execution. The package's main entry point loads the dropper automatically, so any code that requires the module triggers the download-and-execute.

analyzed by
Leitwacht
first seen
Aug 5, 2026, 01:41 PM
analyzed
Aug 5, 2026, 02:09 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.