Malicious PDF — malware analysis report

Static analysis result for SHA-256 c71aa4eefef17201…

MALICIOUS

PDF

28.0 KB
MD5: 9f8cdd43496596f63c68e0fde7ec06c5 SHA-1: 63eb722717b5522d6f628769ec8eb1185415b811 SHA-256: c71aa4eefef17201ef3c4c4825fba528e3dbf4888374eb704dd7a0373df5a1a9
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, specifically identifying it as Js.Exploit.HTML-30. The presence of an XFA form and an embedded URL suggests an attempt to exploit vulnerabilities within the PDF reader or to download a secondary payload. The ML classifier's high confidence score further supports the malicious nature of the file.

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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