Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bf67e27e47d2dc3…

MALICIOUS

PDF

31.8 KB
MD5: a1d8166aec17235c7bc7de7a4ab3c8c5 SHA-1: 9bad3f977e1653a7c1555be1ef807a8234c4148f SHA-256: 1bf67e27e47d2dc3772ca312e65289c0c5d5fbee47090437b4431df1d118e1a6
158 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.002 Phishing: Spearphishing Attachment

The PDF file contains an embedded XFA form that exploits CVE-2010-0188 in Adobe Reader. ClamAV also detected this as Js.Exploit.HTML-30, indicating a JavaScript-based exploit. The embedded URL is likely part of the exploit chain, though its specific function is not detailed. The ML classifier strongly indicates maliciousness.

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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