Malicious PDF — malware analysis report

Static analysis result for SHA-256 22a4ffdb63a90c8c…

MALICIOUS

PDF

24.2 KB
MD5: 773b24b7b6002becf59eeec80c18dc57 SHA-1: 5c21c17a0065f85fce3bdaeed9422d2785773b2d SHA-256: 22a4ffdb63a90c8c8098271ce366ed2f628860b32b85fdfa0f049be42d71f5bf
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF file that contains an XFA form, which is a known vector for exploiting Adobe Reader vulnerabilities. Specifically, the critical heuristic firing indicates a CVE-2010-0188 exploit targeting LibTIFF within XFA content. This exploit allows for arbitrary code execution. The embedded URL, while not directly malicious in this context, is part of the XFA structure.

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/

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