Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8aff177b5958b6a…

MALICIOUS

PDF

28.1 KB
MD5: c8611d10cc27c2df8ae6e2df334f09ef SHA-1: c2989e74ef1a63a21f7d5efa79b7278857f4ac92 SHA-256: e8aff177b5958b6a035afef132abdf53541d1d19679bd39f92a66384e995fdbb
98 Risk Score

Malware Insights

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

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically detecting a JavaScript exploit. The presence of XFA form elements and an embedded URL further supports this. The JavaScript code appears to be obfuscated but likely attempts to download and execute a second-stage payload, as indicated by the ML_NYX_PDF_MALICIOUS heuristic and the ClamAV detection name 'Js.Exploit.HTML-30'.

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/