Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2bb2252d96d0c8b…

MALICIOUS

PDF

31.8 KB
MD5: 69b0e79f79b4531ad8b9651e6e5b5868 SHA-1: 1cf62d1cd6bc80db09228eed0d0e9797b7e2fec5 SHA-256: f2bb2252d96d0c8bfb18db5601ac0c67f19a7389be479072450aee06ea7a2034
148 Risk Score

Malware Insights

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

The PDF file contains an XFA form with executable script, identified by high-severity heuristics. ClamAV also detected it as Js.Exploit.HTML-30. The embedded URL, while not directly malicious, is associated with XFA templates. The script likely downloads and executes a second-stage payload, contributing to the overall malicious nature of the document.

Heuristics 5

  • XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
  • ClamAV: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • XFA numeric character-table eval stager high PDF_XFA_NUMERIC_EVAL_STAGER
    PDF XFA initialize script reads numeric form data from rawValue, maps the values through a short character table, and evals the reconstructed stage. This is an exploit-kit staging technique even when the final decoded layer remains encoded.
  • 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/