Malicious PDF — malware analysis report

Static analysis result for SHA-256 8686d2c46e1f8ce2…

MALICIOUS

PDF

23.8 KB
MD5: d9a86562cdeef2337d90d7053c845c2c SHA-1: 195f0cba899d6c4cb87fcdbba907c5bdcb37728f SHA-256: 8686d2c46e1f8ce25b4a62046f0b70f0521b69f526b63f9766e496d22a7ef739
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1204 User Execution

The PDF file contains embedded XFA (XML Forms Architecture) data, which is leveraged by the CVE-2010-0188 exploit. This exploit targets a vulnerability in Adobe Reader related to the LibTIFF library, allowing for arbitrary code execution. The embedded URL, while seemingly benign, is part of the XFA structure and likely points to resources used in the exploit chain. ClamAV also detected this file as Pdf.Exploit.Dropped-78, further confirming its malicious nature.

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/