Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c55fdf9e433a199…

MALICIOUS

PDF

24.2 KB
MD5: 83c72a20283dbf6a796829eaca54412d SHA-1: 36e4b512a6611d5166bb32d8aa009fcf0ea78c93 SHA-256: 6c55fdf9e433a199d36ec7e1b463f85c7e43acf8a17156561eeb0ec19ac2e300
160 Risk Score

Malware Insights

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

The PDF sample contains embedded XFA content and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader's LibTIFF component. This exploit is designed to achieve arbitrary code execution. The embedded URL, while seemingly benign, is present within the document structure and could be used in conjunction with the exploit. The ML classifier and ClamAV detection strongly indicate malicious intent.

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/

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