npm

tinkoff-boxy-mobile-vivid-heading @20.7.5

Vulnerability report · Last retrieved from osv.dev August 5, 2026 at 5:00 AM UTC

Malicious

OSV ID

MAL-2026-12075

Ecosystem

npm

Summary

On require of the package, _runtime.js selects a platform-specific asset path and fetches an opaque binary over HTTPS from Cloudflare Workers hosts whose names are reconstructed at runtime via string-fragment concatenation (oob-worker.cf100-416.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev). A DNS-TXT fallback channel enumerates TXT records on tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, and win.dl.well1.site, base64-decoding concatenated chunks into an executable buffer. The fetched bytes are written to /var/tmp as a hidden dotfile on POSIX (or to %TEMP% as dotnet_diag_*.exe on Windows), chmodded 0755, and spawned detached via /bin/sh -c or cmd.exe with stdio ignored. A second module lib/telemetry.js contains an equivalent write+chmod+spawn+base64 chain under an 'Analytics SDK' cover story, though it is not reached from the entrypoint in this version. The stated 'device integration' purpose has no legitimate need to reconstruct destination hostnames from split fragments, ship a DNS-TXT chunked binary loader, or fetch and execute an opaque native binary on load.

Source: amazon-inspector (979353bc7d77343797621496972688b79dddd8688f1e1021b04a04c4d0572b31)

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