Malicious PDF — malware analysis report

Static analysis result for SHA-256 e333ed63ce588558…

MALICIOUS

PDF

18.2 KB
MD5: c25908bfbe549cfda236ef40478e3380 SHA-1: 061c893dbd8685e74f95fbf608047946a753851e SHA-256: e333ed63ce588558b0927d8a2e03dbd93582415b26c6d3c6f1e6136541747605
168 Risk Score

Malware Insights

The sample is a PDF file that leverages XFA (XML Forms Architecture) to deliver an exploit. Heuristics indicate a critical vulnerability, CVE-2010-0188, related to LibTIFF and XFA image processing in Adobe Reader. The XFA numeric eval stager suggests the PDF is designed to execute code. The embedded URL is likely part of the exploit chain, potentially for downloading a secondary payload. 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-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/