Malicious PDF — malware analysis report

Static analysis result for SHA-256 d15ca4aa2e2127da…

MALICIOUS

PDF

20.2 KB
MD5: 75174dd485b33296e4167d4edd0fec0a SHA-1: a7b1064ed8503326aabf31627c1d6a993f599db1 SHA-256: d15ca4aa2e2127da8d52f8c473397803569dd3371875eff52e0bff6977d6138f
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1559.001 Component Object Model Hijacking

The sample is a PDF file identified as malicious by ClamAV, specifically detecting it as Pdf.Exploit.Agent-36826. Static analysis indicates the presence of an XFA form and a critical heuristic firing for CVE-2010-0188, an Adobe Reader LibTIFF XFA image exploit. This suggests the document is designed to exploit this vulnerability upon opening in a vulnerable version of Adobe Reader, likely leading to the download and execution of a secondary payload. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure.

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-36826 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36826
  • 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/