Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6fc92e55862c729…

MALICIOUS

PDF

28.5 KB
MD5: ca6c2e6782f4b4fdd5067da75013bf4b SHA-1: 33857b7ebe4b244b8e691c00b7ac24cd2f638eb4 SHA-256: d6fc92e55862c7298b4c61a35740c8e63041f57cc9f36b119fced485173a44da
100 Risk Score

Malware Insights

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

The file is a PDF containing XFA form elements and embedded JavaScript, as indicated by the PDF_XFA heuristic and the presence of script tags in the document body. ClamAV detected this as Js.Exploit.HTML-30, suggesting it's a known JavaScript exploit. The embedded URL, while seemingly benign, is part of the XFA structure and may be used in conjunction with the exploit. The JavaScript itself appears obfuscated but the overall structure points to an exploit delivery mechanism.

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/