Malicious PDF — malware analysis report

Static analysis result for SHA-256 55763e320d881d08…

MALICIOUS

PDF

23.9 KB
MD5: f3e2754f668953feb975e5510820de7c SHA-1: bb8c2749d2b8c78bbd9d8f664fd3ba0505db84df SHA-256: 55763e320d881d085d8b53fed41a44a11edbbecf93568fe9b6058f50da7052e7
130 Risk Score

Malware Insights

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

The sample is a PDF file that contains XFA form elements, which are known to be a vector for exploits. Specifically, the CVE-2010-0188 heuristic indicates a critical vulnerability related to LibTIFF and XFA image exploitation. ClamAV also detected this as a malicious PDF exploit. The embedded URL is likely related to the XFA template, further supporting the exploit vector.

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/