Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4a4df5949fce8c6…

MALICIOUS

PDF

24.1 KB
MD5: 8f029124ac9c3d5a6a301f95a8762648 SHA-1: 0ce4289dde0fdfcea29926f7a0b7ec8a0d3e6679 SHA-256: c4a4df5949fce8c63317d3ff1746ca2b8efc392af1720d4f7adc6f039ea7f3a4
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.002 Phishing: Spearphishing Attachment

The file is a PDF document that contains an XFA form, which is a known vector for exploiting vulnerabilities. Specifically, the critical heuristic firing indicates a CVE-2010-0188 exploit targeting LibTIFF within Adobe Reader's XFA processing. This exploit likely leads to arbitrary code execution. The embedded URL, while seemingly benign, is part of the XFA structure and could be involved in the exploit chain.

Heuristics 4

  • 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-36821 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36821
  • 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/