Malicious PDF — malware analysis report

Static analysis result for SHA-256 66b431f7d1258953…

MALICIOUS

PDF

24.4 KB
MD5: e59ee98d450adfb2bcbdb1caa154ba4b SHA-1: f8e045db9f7775cc5edbc7d7d3bd75ab75cb1619 SHA-256: 66b431f7d1258953b96a466cf655161a1523ed7f380608d149cdf207c2b79a78
160 Risk Score

Malware Insights

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

The PDF sample contains an XFA form that triggers the CVE-2010-0188 exploit, which is known to be used for arbitrary code execution. The embedded URL is likely related to the exploit's functionality or payload delivery. 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.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
  • 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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