Malicious PDF — malware analysis report

Static analysis result for SHA-256 76f006005fef715d…

MALICIOUS

PDF

25.2 KB
MD5: 4faff851d7a318a0cc715c3c23ab7dad SHA-1: e7a650f2a96b4fbf0d47d4c7be8b3c5c3322ec2d SHA-256: 76f006005fef715dee5ad31578c607f0f501ffdf69b903436bccd25ed9251cd8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The sample is a PDF file identified as malicious by multiple heuristics, including a critical detection for CVE-2010-0188, an Adobe Reader LibTIFF XFA exploit. It also contains embedded JavaScript, indicated by the ClamAV detection 'Js.Exploit.HTML-30'. The embedded URL, though obfuscated, points to an XFA schema, further supporting the exploit vector. The script likely downloads and executes a second-stage payload.

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: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • 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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