Malicious PDF — malware analysis report

Static analysis result for SHA-256 e50dbfbb6b578086…

MALICIOUS

PDF

31.8 KB
MD5: a8f38cc0ac1bb2250a828453ac3bddac SHA-1: 262dedeeb3e23792e62bee6563be00595a897e4e SHA-256: e50dbfbb6b578086dcd30c2068570d51aa18c5628f47532e7739fd3efc853eaf
100 Risk Score

Malware Insights

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

The PDF file contains XFA form elements and embedded JavaScript, as indicated by the PDF_XFA heuristic and the ClamAV detection of Js.Exploit.HTML-30. The embedded URL is likely part of the exploit chain. The ML classifier strongly flags this PDF as malicious, suggesting it's designed to deliver a payload via JavaScript execution.

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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