Malicious PDF — malware analysis report

Static analysis result for SHA-256 17a69746d6e8a22f…

MALICIOUS

PDF

28.3 KB
MD5: 0a26bd95784aecd080a43029158b7f3e SHA-1: a945f758e52339cecd37790388f8a8bf3eeb73c5 SHA-256: 17a69746d6e8a22f121dffe8d220b0942825b673aafc0c6f55cd5569efd7bfbe
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics, including a critical ClamAV detection (Js.Exploit.HTML-30) and an ML classifier, indicating malicious intent. The presence of XFA form elements and embedded JavaScript suggests the document is designed to execute malicious code, likely to download and run a second-stage payload. The embedded URL is likely part of this exploit chain.

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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