Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec60e5b888d7cf45…

MALICIOUS

PDF

28.6 KB
MD5: f79b4f3931686d13abf94cc89f0127d9 SHA-1: 20994aaef4b092dc90133f059aa4fec29581b8c3 SHA-256: ec60e5b888d7cf459ce94d7ca183e636049c750070f0a03df5e2130ed5392be0
168 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The PDF file contains XFA form elements and triggers a critical heuristic for the CVE-2010-0188 exploit, which targets Adobe Reader's LibTIFF handling. This indicates the document is designed to exploit this vulnerability upon opening. The embedded URL, while seemingly benign, is part of the exploit chain. The ClamAV detection further confirms its malicious nature.

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-36825 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36825
  • 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/