Malicious PDF — malware analysis report

Static analysis result for SHA-256 4267c4d06ef9f6bf…

MALICIOUS

PDF

24.1 KB
MD5: fff5151f5ff3fb81a1f6a708bcb3c600 SHA-1: 98bf8c8399e0e690e1ea5ca1807d61f01c110586 SHA-256: 4267c4d06ef9f6bfa9d690ab57b92c5578bffee60a145bbff83eadad04795c9a
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains an XFA form and triggers a critical heuristic for CVE-2010-0188, an Adobe Reader LibTIFF exploit. This indicates the file is designed to exploit a vulnerability upon opening. The embedded URL, while not directly malicious in reputation, is part of the XFA structure and likely related to the exploit's functionality. The ClamAV detection further confirms its malicious nature. The exploit likely leads to the download and execution of a second-stage payload.

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/