Malicious PDF — malware analysis report

Static analysis result for SHA-256 c52416cd60d5993c…

MALICIOUS

PDF

24.1 KB
MD5: 798c315c5b3d7e39d1fe6c6812cce00f SHA-1: ca7d1381fbf68f2d193cc937c95d1cf3a979387e SHA-256: c52416cd60d5993ca424ce2f3640dbf7a4c9efb7c8c7d8ad25d47f2f57e4e98f
130 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF document that contains an XFA form, which is known to be a vector for exploits. Static analysis identified a critical heuristic firing for CVE-2010-0188, indicating exploitation of Adobe Reader's LibTIFF component. ClamAV also detected the file as Pdf.Exploit.Agent-36821. The embedded URL, while not directly malicious, is associated with XFA templates and likely serves as a lure or part of the exploit 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-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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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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