Malicious PDF — malware analysis report

Static analysis result for SHA-256 f842dbabc47302c3…

MALICIOUS

PDF

20.1 KB
MD5: 84de405bacec62e9dec5fdfaf7a2d61f SHA-1: ddc7f86528d1532afce7abafc8a9865f5fcbe5dd SHA-256: f842dbabc47302c3e9cf554e08539c745ea59d040583d0d4731061408ab606c6
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The sample is a PDF file that contains XFA form elements, which are known to be vulnerable to exploits. Specifically, the CVE-2010-0188 heuristic indicates an exploit targeting Adobe Reader's LibTIFF component. ClamAV also detected this as a malicious PDF exploit. The embedded URL, while seemingly benign, is part of the XFA template structure and could be used in conjunction with the exploit.

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/