Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d5016db24918d0e…

MALICIOUS

PDF

24.1 KB
MD5: 45b87e199aac332c90f884f9719075be SHA-1: f04e3c29d9772629c7e9019a2603c91b0b93ead6 SHA-256: 4d5016db24918d0ea493e88ff548d873efff624015dce8885d1497cd1dcc77c7
130 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 known to be a vector for exploits. Static analysis detected a critical heuristic firing for CVE-2010-0188, indicating exploitation of a vulnerability in Adobe Reader's LibTIFF component via XFA. ClamAV also detected the file as malware. The embedded URL, while seemingly benign, is part of the XFA structure and likely related to 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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