Malicious PDF — malware analysis report

Static analysis result for SHA-256 34dda36269d97060…

MALICIOUS

PDF

28.1 KB
MD5: 73d72fc7c0379a51526513c8f4c8459a SHA-1: df19f70df2cb37d4cd4ef187d0b355f0328c8c4f SHA-256: 34dda36269d970608cd62c2c77920163597c6738f6005531d9a53f669e8e8e2e
70 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains an XFA form, a known vector for embedding malicious content. ClamAV detected this as Js.Exploit.HTML-30, indicating an exploit attempt likely involving JavaScript. The embedded URL, while seemingly benign, is part of the XFA structure. The obfuscated JavaScript in the DOC BODY section, when decoded, appears to be attempting to execute code, likely to download and run a second-stage payload.

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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