Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e007b4ac18591a9…

MALICIOUS

PDF

28.0 KB
MD5: 3baae43b915c8a466be8edb7545f9e8d SHA-1: a906ffd41d4e9c7c111f88b3e4f76fd8d52ab487 SHA-256: 5e007b4ac18591a94d367dc1c540c3b8c0f36911e3d89690cf88a6812162aac6
100 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF sample contains an XFA form and embedded JavaScript, as indicated by the PDF_XFA heuristic and the CLAMAV_DETECTION rule (Js.Exploit.HTML-30). The embedded JavaScript, which appears to be obfuscated, likely attempts to exploit a client-side vulnerability. The embedded URL is likely part of the exploit chain.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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
  • 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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