Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5e49c54091884c5…

MALICIOUS

PDF

700 B Authoring application: malicious-pdf (via https://github.com/jonaslejon/malicious-pdf) First seen: 2026-06-09
MD5: 25c3594bad672b20f9c11f43fda39f57 SHA-1: e95d604f38b6dc3c4a2e0763db2279fa11b0aa5d SHA-256: e5e49c54091884c53f20a5da9913a52d2ee0cf72165435243d41523d95fefdc9
168 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

Heuristics 5

  • ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
  • Hex-obfuscated scripting name object critical PDF_OBFUSCATED_NAME_OBJECT
    A PDF name object that drives script execution (/JavaScript or /JS) is written with #XX hex escapes to hide it from string-based scanners — e.g. /J#61v#61S#63r#69p#74 decoding to /JavaScript. Legitimate PDF producers always write these names literally; hex-encoding an executable name is a deliberate evasion used by exploit-kit and dropper PDFs.
  • JavaScript action low 1 related finding PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://github.com/jonaslejon/malicious-pdf In PDF document text
    • https://192.168.1.19/test46-obj-injectIn PDF document text

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