Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a895ac545d2a52…

MALICIOUS

PDF

24.1 KB
MD5: cae625801243edc5206ed6362e789d2d SHA-1: c85e7cbd1ccf9f1b15d05bb56c7f39f622ba8da8 SHA-256: 18a895ac545d2a527b487160630a500620a3db97b450c4faee47e7cac781a435
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains an embedded XFA form which is exploited using CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF processing. This exploit allows for the execution of arbitrary code on the victim's machine.

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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