MAL-2026-13336

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## Source: amazon-inspector (373a9a2757b6b44dde0583e1cf35f5eabe8e360bf732e751630d8bb8ddb72ee6) On require() of dolyame-boxy-markdown, index.js loads _ext.js which downloads a platform-specific native binary from author-controlled Cloudflare Workers subdomains (oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS TXT covert-channel fallback under *.dl.wel1.ru (sdk/ext/pkg/net subdomains). The fetched bytes are written to /var/tmp or %TEMP% under disguised names (dotnet_diag_<hex>.exe,.cache_<hex>), chmod 0755, then spawned detached via cmd.exe /c start /b on Windows or /bin/sh -c '<path> &' on Unix. No hash or signature verification is performed. Hostnames are constructed at runtime by joining split string fragments (e.g. ['oob-w','orker.cf101-adf.w','orkers.de','v'].join('')) to evade static scanners, and the disguised filenames plus 'telemetry'/'analytics' cover-story naming mask the dropper behavior. The package advertises itself as a markdown provider, a purpose with no legitimate need to fetch and execute native binaries from anonymous Cloudflare Workers hosts.