MAL-2026-12532

    Dashboard / Malicious Package / MAL-2026-12532

    MAL-2026-12532

    Published: 5 Aug 2026Last Modified: 5 Aug 2026

    Summary: Malicious code in cardsmobile-event-emitter (npm)

    Details: Source: amazon-inspector (66db77fd91ad9316ea06a13f10281595e60cf846e89787bcbb793d061cdd1315) On require of cardsmobile-event-emitter, index.js unconditionally loads _loader.js, which fetches an opaque platform-specific binary over HTTPS from runtime-concatenated Cloudflare Workers hosts (oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev) with a DNS TXT fallback channel across sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The fetched bytes are written to /tmp (Unix) or %TEMP% (Windows) under a disguised name such as.cache_<hex> or dotnet_diag_<hex>.exe, chmod 0755'd, and spawned detached via /bin/sh -c or cmd /c start /b. Destination hostnames are assembled via array-join string splits to evade static analysis, and the DNS-TXT channel reassembles base64-encoded TXT records into an alternate payload path. The package's stated 'event emitter' purpose is unrelated to the download-and-execute behavior; there is no version pinning and no hash or signature verification of the fetched binary. A second full copy of the dropper (lib/telemetry.js, ~81KB) ships in the tarball with the same fetch/spawn shape.

    References: https://www.npmjs.com/package/cardsmobile-event-emitter/v/35.2.8

    Affected packages

    Package

    Name: cardsmobile-event-emitter

    Purl: pkg:npm/cardsmobile-event-emitter

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    35.2.8
    MAL-2026-12532 | CVE-DB