Malicious PDF — malware analysis report

Static analysis result for SHA-256 72e9e2caf312cd3c…

MALICIOUS

PDF

24.0 KB
MD5: 07a8d7177ea936012e0fcb91da0edae5 SHA-1: a6be024cd3048b5045540f51b048d67cc30e40dd SHA-256: 72e9e2caf312cd3c23f4349745d471118d073e0b128fb4e8dc4ca2df40198adc
160 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by multiple engines, including ClamAV and a machine learning classifier. It contains an embedded XFA form and exploits CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF component, to achieve code execution. The embedded URL, while seemingly benign, is part of the XFA structure and may be used in conjunction with the exploit.

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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