Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e560abe272b4f9c…

MALICIOUS

PDF

32.4 KB
MD5: 74a32c5295462457c876de3c463a7f4f SHA-1: fcbbb73e2942e06fcca212b86dd2a1797a8e6b57 SHA-256: 9e560abe272b4f9ce491cdc966d003210f08ba79faf4816e5776fe192ec3f736
148 Risk Score

Malware Insights

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

The PDF file contains an XFA form with executable JavaScript, identified as a stager by heuristics. This script is likely designed to download and execute a second-stage payload. ClamAV detection of Js.Exploit.HTML-30 further supports the malicious nature of the embedded script.

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/

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