Malicious PDF — malware analysis report

Static analysis result for SHA-256 80c1a84ba6ee5da8…

MALICIOUS

PDF

31.6 KB
MD5: 7b2b961bcad332ef07fbaf52eb69ccdd SHA-1: 29e2f2e1c6e5d63d894c96a972e641f0c82ac275 SHA-256: 80c1a84ba6ee5da8032fd97528e15e282b2089d878887924c872b690037f068a
180 Risk Score

Malware Insights

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

The PDF contains XFA forms with executable scripts, identified as a stager for numeric evaluation. This indicates an attempt to exploit vulnerabilities for client execution, likely by downloading and running a secondary payload. The ClamAV detection 'Js.Exploit.HTML-30' further supports the malicious nature of the embedded script.

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.