Malicious PDF — malware analysis report

Static analysis result for SHA-256 89c3c603feaa2142…

MALICIOUS

PDF

12.7 KB
MD5: c3e6f0cd4c4ce1147f6beb8abf46e6c0 SHA-1: bd99d7f16dac2f4f1fc12f196c2bb91da8df5711 SHA-256: 89c3c603feaa214233cc146e3ec6ef1bc7bf4a864fff7aa5a0c626b1cf5e0254
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The sample is a PDF file that triggers the CVE-2010-0188 exploit, targeting Adobe Reader's XFA functionality. ClamAV also identified it as Js.Exploit.HTML-30, indicating JavaScript-based exploitation. The embedded URL, while seemingly benign, is associated with XFA templates and likely serves as a lure or part of the exploit chain. The XFA form structure and the exploit firing strongly suggest the document is designed to deliver a secondary payload.

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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