Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9e831dcfed77315…

MALICIOUS

PDF

31.6 KB
MD5: 1472606c7435b4ed1a541973f8304006 SHA-1: 3c17a975ea9f41c187e5bc1373963126e6a1c20a SHA-256: e9e831dcfed773155811478ca958f8cd585e1597951d13ff1a64293b9ba30357
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 a JavaScript exploit. The presence of XFA form elements suggests an attempt to leverage form functionality for malicious purposes. The embedded URL, while seemingly benign, is part of the exploit chain. The script likely attempts 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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