Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffe0f596cfbfed6e…

MALICIOUS

PDF

17.9 KB
MD5: 728db486540d69d2c665bae389008231 SHA-1: cfddf2f6e75fc7597ee2985950aa3536c2341838 SHA-256: ffe0f596cfbfed6eeeac94c2c147b6a174a8186f40349d39440590bf15184c30
168 Risk Score

Malware Insights

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

The sample is a PDF file that leverages the XFA (XML Forms Architecture) feature to deliver a malicious payload. Heuristics indicate a critical vulnerability exploit, specifically CVE-2010-0188, which targets Adobe Reader's LibTIFF processing within XFA forms. This exploit is designed to achieve arbitrary code execution on the victim's machine. The embedded URL, while seemingly benign, is part of the XFA structure and could potentially be used in a broader attack chain.

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/