Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9d8473c3702c73d…

MALICIOUS

PDF

18.9 KB
MD5: 8fcac348d141b1c3b16d8a7c3f018687 SHA-1: 12f2ed3b8e60cd72aca68f004c70f5843c49ef27 SHA-256: f9d8473c3702c73d194210fbf979116dd5fef973cbcbac8f35c49b6a227d883d
168 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment

The sample is a PDF file that leverages XFA (XML Forms Architecture) to deliver a payload. Heuristics indicate a critical vulnerability exploit, specifically CVE-2010-0188, which targets Adobe Reader's handling of XFA forms. The embedded URL is likely part of the exploit chain, potentially used to download or stage further malicious content. The XFA numeric eval stager further supports the exploitation of XFA features for code execution.

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/