Malicious PDF — malware analysis report

Static analysis result for SHA-256 726b97e5481736f0…

MALICIOUS

PDF

24.1 KB
MD5: de6a32c564594b8c41828a4068143cc5 SHA-1: 4781ef2355c81f1a83240144e9160057169f9341 SHA-256: 726b97e5481736f0a6c3cdcebc7c5a5e5086c64d155769f796c541734c504f9a
160 Risk Score

Malware Insights

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

The file is a PDF that triggers a critical heuristic for CVE-2010-0188, an Adobe Reader exploit targeting XFA forms. This indicates the file is designed to execute code upon opening. The embedded URL, while benign in appearance, is associated with XFA templates and could be a lure or part of the exploit chain. The ML classifier and ClamAV detection further confirm its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • 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/