Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfa73847e94f5c54…

MALICIOUS

PDF

24.2 KB
MD5: b517a8a387907c723c0c0f812523d293 SHA-1: 2274c0937c3f05f4e183cc5200dc733515a6f234 SHA-256: bfa73847e94f5c543f6818c1983f21df595ac8344fcf3c3698c72d4b579d446d
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability in Adobe Reader, specifically targeting XFA forms. The embedded URL, http://www.xfa.org/schema/xfa-template/2.5/, is likely part of the exploit mechanism. ClamAV also detected this as Js.Exploit.HTML-30, indicating a JavaScript-based exploit.

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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