Malicious PDF — malware analysis report

Static analysis result for SHA-256 32fae759c86dc41f…

MALICIOUS

PDF

20.4 KB
MD5: 1e591a741dab16e2b4136fe315fe9376 SHA-1: 1a19b38c18eedc5723a2433f5bad5c6ac6d0f06b SHA-256: 32fae759c86dc41fab3894230abcb2cecd9c688b79095da7f0643599509c54d4
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 often used to deliver exploits. Static analysis identified a critical heuristic firing for CVE-2010-0188, indicating exploitation of Adobe Reader's LibTIFF component. ClamAV also detected the file as Pdf.Exploit.Dropped-78. The embedded URL, while not directly malicious, 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.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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/