Malicious PDF — malware analysis report

Static analysis result for SHA-256 623fbe5b94be54bc…

MALICIOUS

PDF

24.2 KB
MD5: b8c3beaf0d6a308b0e6689afe2c07f3f SHA-1: 4749ac28e6d68f2b9a1dd35d08420066e75d2a77 SHA-256: 623fbe5b94be54bca07dd89c27445454f8594481a63a3691261c6ab9bf431b30
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The file is a PDF that contains an XFA form, which is known to be a vector for exploiting Adobe Reader vulnerabilities. Static analysis identified a critical heuristic match for CVE-2010-0188, an exploit targeting LibTIFF within XFA forms. This exploit likely leads to the execution of arbitrary code, as indicated by the ML classifier and ClamAV detection.

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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