Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a7a91256bb5e683…

MALICIOUS

PDF

28.3 KB
MD5: 7bb0f79be250ec6b9b6bd3668e5def60 SHA-1: a8dcb730875925dd349ab4dc8185e6d1d8dbcfd7 SHA-256: 2a7a91256bb5e683a32715326b07c506a2cd47248d5ed1b3ab4cb09880a6fbb9
68 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF was flagged as malicious due to the presence of an XFA form and a critical ClamAV detection for Js.Exploit.HTML-30. The embedded URL, while seemingly benign, is part of the exploit chain. The document body contains obfuscated JavaScript, likely intended to download and execute a second-stage payload, which is a common technique for initial access.

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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