Malicious PDF — malware analysis report

Static analysis result for SHA-256 902a1812ef011278…

MALICIOUS

PDF

24.1 KB
MD5: 8a6f55b5ce6c0ad034149373683c28bb SHA-1: 185a9d7fd84a5e7c048f6bd0dae0d9d7d1287d20 SHA-256: 902a1812ef011278c50224bc3fe02fa10fca75128e8768dd51d6d75bc7bec0cd
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.004 Command and Scripting Interpreter: PowerShell

The sample is a PDF file identified as malicious by ClamAV, specifically flagged for exploiting CVE-2010-0188 via XFA forms. The embedded URL, while seemingly benign, is part of the XFA structure. The heuristic firings strongly indicate exploitation of a known Adobe Reader vulnerability for initial execution.

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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