Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7fc2c239aaba5c1…

MALICIOUS

PDF

28.0 KB
MD5: 17d05305ce6b07276e46ec6f823c6367 SHA-1: 4ee4bb2f2db7fc7ace06e85c1b96eb07d399b1a2 SHA-256: c7fc2c239aaba5c14e4e1100dc65c22d27f4d12c719cd907a698d8d166fb8a16
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File

The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically detecting it as Js.Exploit.HTML-30. The presence of an XFA form and an embedded URL further indicate malicious intent. The obfuscated JavaScript within the document body likely attempts to download and execute a second-stage 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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