Malicious PDF — malware analysis report

Static analysis result for SHA-256 759de26ea0d4f54c…

MALICIOUS

PDF

32.0 KB
MD5: c9089bb579eb5ffe02c04f0cfb5e9edb SHA-1: 3c928511cfb9e8038585f1bf53ed8238aa6e24c4 SHA-256: 759de26ea0d4f54caa3ae59d8015c69d8573bcdcdb9a463a81865492d1489243
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains XFA forms with executable scripts, identified as a stager by heuristics. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL is likely part of the exploit chain, though its specific function is not detailed.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/

Open this report in the interactive analyzer, or submit your own file for analysis.