Malicious PDF — malware analysis report

Static analysis result for SHA-256 4df00160a1a622a0…

MALICIOUS

PDF

28.3 KB
MD5: 6fdd7f18d36fd4e6b5d178daa83401b2 SHA-1: 7c5ead39cd6e7043b24133f077caa1ece5c00f2f SHA-256: 4df00160a1a622a04433f05dea99b884eec6352affbf989158b25246314b55c6
70 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains an XFA form, which is a known vector for exploiting vulnerabilities. ClamAV identified it as Js.Exploit.HTML-30, indicating the presence of malicious JavaScript. The embedded URL, while seemingly benign, is part of the exploit chain. The script likely attempts to download and execute 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/