Malicious PDF — malware analysis report

Static analysis result for SHA-256 37f8646ccf3a1266…

MALICIOUS

PDF

24.1 KB
MD5: 10196fd116fcb464f27b3823799638ef SHA-1: 72750c7a9c3281482d18c0fc051a5940404d9273 SHA-256: 37f8646ccf3a12663f9f8a23323c1072f7927315f0c3e1d6bfe7315748863e52
130 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The file is a PDF containing an XFA form, which is known to be a vector for exploiting vulnerabilities. Specifically, the 'CVE_2010_0188' heuristic firing indicates exploitation of a LibTIFF vulnerability within Adobe Reader. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure. The ClamAV detection further confirms its malicious nature. The primary attack pattern involves leveraging this exploit to achieve code execution, likely for downloading and running 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/