Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c07ad318dede44d…

MALICIOUS

PDF

28.5 KB
MD5: 1a23c54b11a724cffd1cd1521d199b9a SHA-1: 5b12d4894a82203f1ea4ca347c99968e34f00d2c SHA-256: 2c07ad318dede44df90191455ebbe6b6f200e0d43bc5f6bddca8dacefe6761ab
100 Risk Score

Malware Insights

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

The PDF utilizes XFA (XML Forms Architecture) which is known to be exploited. ClamAV detection of 'Js.Exploit.HTML-30' and the ML classifier strongly indicate malicious intent. The embedded URL, while seemingly benign, is part of the XFA structure and likely used in conjunction with the exploited form to download and execute a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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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