Malicious PDF — malware analysis report

Static analysis result for SHA-256 3899a16d8838bc1c…

MALICIOUS

PDF

949 B Authoring application: malicious-pdf (via https://github.com/jonaslejon/malicious-pdf) First seen: 2026-06-10
MD5: 892299744e6df900ed88c5003386fbac SHA-1: 2d968312ace71c7afa425bebbedfb23b924e00f7 SHA-256: 3899a16d8838bc1cc0db3f5a0acff1d47dfd175655e52e71357037f97a9fc8a1
82 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0976

Heuristics 3

  • UNC path in PDF — possible NTLM credential theft (CVE-2018-4993/CVE-2019-7089) high CVE likely CVE_2018_4993
    PDF contains a UNC path (\\server\share) alongside action triggers — when a vulnerable viewer resolves this path, Windows may send NTLM credentials to the remote host as the matching PDF action is processed
  • Remote GoTo action high PDF_GOTO_REMOTE
    PDF references an external document via GoToR/GoToE whose target is a URL, UNC path, or executable
  • 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
    • \\172.29.98.66\testIn PDF document text

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