Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc1e17b49423dac4…

MALICIOUS

PDF

46.6 KB
MD5: c24eca0b52f3cc9019564dbb9a1140d6 SHA-1: f361833ab24c9c6c9d9ee8fb5c6e804d10550e4a SHA-256: bc1e17b49423dac4cdf2b68e7c84c456d4f8c01bf067ae896907d61e05a67b8a
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The PDF utilizes XFA forms, a known vector for exploitation. ClamAV detection as 'Pdf.Exploit.Dropped-78' and a high ML classifier score strongly indicate malicious intent. The embedded URL, while seemingly benign, is often used in conjunction with exploits within XFA forms to download and execute further stages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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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