Malicious PDF — malware analysis report

Static analysis result for SHA-256 76d6eb74a2c9cc9d…

MALICIOUS

PDF

24.2 KB
MD5: 42ba1574838d111cd738f2c5107dd34d SHA-1: c6220d75bd62dcf76f73c163d7c721e6a9500c95 SHA-256: 76d6eb74a2c9cc9d756a80d3a6da9277d48880c3454d53f0b71717a80bab19c5
162 Risk Score

Malware Insights

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

The PDF file contains XFA (XML Forms Architecture) content and triggers a critical heuristic for CVE-2010-0188, an exploit targeting Adobe Reader's LibTIFF component. This indicates the document is designed to execute arbitrary code upon opening. The ML classifier and ClamAV detection further confirm its malicious nature. The embedded URL is likely related to the XFA template but does not appear to be a direct payload delivery URL.

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/