Malicious PDF — malware analysis report

Static analysis result for SHA-256 33f740f301f1ed43…

MALICIOUS

PDF

24.1 KB
MD5: 426deea43d4fddc392c396370fdad896 SHA-1: 76afd5a47922b00caef85710c22d121c905ce3c7 SHA-256: 33f740f301f1ed43c23c6f5709ef40fcf94417be28388f03830a0d0c7634984a
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 heuristics, including a critical detection for CVE-2010-0188, which is an exploit targeting Adobe Reader's LibTIFF component. The presence of XFA form elements and the exploit payload strongly suggest it's designed to achieve arbitrary code execution upon opening. The embedded URL, while not directly malicious, is associated with XFA templates 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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