Malicious PDF — malware analysis report

Static analysis result for SHA-256 8139c51b526fdc7b…

MALICIOUS

PDF

24.5 KB
MD5: a7ce2544a06eb0df5118b30a2dad61f0 SHA-1: 629d7c4aeb941f0761a9be8fb6fdd9f3c7c9505e SHA-256: 8139c51b526fdc7b9fe0e3d860c62405256a6aa54819f95ba7c4fe9a76003030
160 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by multiple heuristics, including a critical detection for CVE-2010-0188, which exploits a vulnerability in Adobe Reader's XFA form processing. This exploit allows for arbitrary code execution. The embedded URL, while seemingly benign, is part of the XFA template structure and may be used in the exploitation chain.

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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