Malicious PDF — malware analysis report

Static analysis result for SHA-256 713f5921fc4c7e2e…

MALICIOUS

PDF

24.1 KB
MD5: 0ac6f41743290f01a23c19460f1e2523 SHA-1: fe19b8c8f4b92a2c12821704ca99fe0f5da74023 SHA-256: 713f5921fc4c7e2e1b7198bf48e0df1c266f83574f998d17019b33c63b12161e
162 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains embedded XFA (XML Forms Architecture) data, which is known to be a vector for exploits. Heuristics and ClamAV detection confirm the presence of the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF component. The ML classifier strongly indicates maliciousness. The embedded URL, while seemingly benign, is part of the XFA structure and could be used in conjunction with the exploit.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/