Malicious PDF — malware analysis report

Static analysis result for SHA-256 72f2c264852fd193…

MALICIOUS

PDF

17.8 KB
MD5: db7301215ff0599d779d475cdf17da54 SHA-1: d9c16377b015abec47bfec5f4a89f6028c6c7743 SHA-256: 72f2c264852fd193c2f5ade71ba55c1d16f6d89c93019c50270000eb62da5ff3
200 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains critical heuristic firings indicating exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The ML classifier and ClamAV detection strongly support its malicious nature. The embedded URL is likely part of the exploit chain or a secondary download location.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • ClamAV: Pdf.Exploit.Agent-36831 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36831
  • 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/