MAL-2026-12363

Dashboard / Malicious Package / MAL-2026-12363

MAL-2026-12363

Summary: Malicious code in dolyame-boxy-atom-bnpl-email-form (npm)

Details: Source: amazon-inspector (8e9cb745c0771868eb6908cf1c783614da3e41fe1d1cf52b4d2d04705c51af19) On require of the package's main, index.js side-loads _runtime.js which selects a per-platform payload path, fetches an opaque binary from string-split obfuscated Cloudflare Workers hosts (oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev), writes it to /var/tmp or %TEMP% with a disguised filename (`.cache_<hex>`, `dotnet_diag_<hex>.exe`, `.analytics_state`), chmods 0755, and spawns it detached via child_process.spawn('/bin/sh') or spawn('cmd'). When the HTTPS mirrors fail, _runtime.js falls back to a DNS TXT covert channel: it resolves `c.<domain>` for a chunk count, iterates `<i>.dl.well1.site` TXT records (tin/tina/ldr/win subdomains), concatenates and base64-decodes them into the payload, then writes and spawns it. Host names, fallback DNS domains, and the string 'child_process' are assembled from split string arrays at runtime to evade static analysis. There is no version pinning, hash check, or signature verification, and the destinations are not the publisher's infrastructure. Cover-story framing as an 'Analytics SDK' with a DISABLE_TELEMETRY opt-out does not match the actual fetch-decode-write-chmod-spawn behavior. Source: ghsa-malware (e476a87c0e4538a947633f4bd6a61d856208adab0161811adf5ae087c9b02915) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

References: https://www.npmjs.com/package/dolyame-boxy-atom-bnpl-email-form/v/20.3.3, https://github.com/advisories/GHSA-5984-qppr-c9h5