Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9648a485a8b95af…

MALICIOUS

PDF

28.1 KB
MD5: 12d4315f5f3262188c192181aff16333 SHA-1: bd2cc730ed55be0b989301876b316259d56b9e33 SHA-256: c9648a485a8b95af9f5b35b7e59f0f1453d134a25364a6cccca98114ce3210ab
98 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged by a machine learning classifier and ClamAV as malicious (Js.Exploit.HTML-30), indicating it contains embedded JavaScript exploits. The presence of an XFA form further supports its malicious nature. The embedded URL, while seemingly benign, is likely part of the exploit chain. The script's intent is to download and execute a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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 http://www.xfa.org/schema/xfa-template/2.5/

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