Malicious PDF — malware analysis report

Static analysis result for SHA-256 e81d37b9a6dc0fb6…

MALICIOUS

PDF

31.3 KB
MD5: 23af9f15cffe7c2ca3643da35f004575 SHA-1: 20211926d9265c06538ce5baf5d4a1d329ee243e SHA-256: e81d37b9a6dc0fb61f25d5015ecd788f016373e38b633aa1c5e0a1841c15077f
158 Risk Score

Malware Insights

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

The PDF file contains an XFA form that triggers the CVE-2010-0188 exploit in Adobe Reader. Static analysis also detected JavaScript, which is often used in conjunction with such exploits to download and execute further stages. The embedded URL, while seemingly benign, is associated with XFA templates and could be a lure or part of the exploit chain.

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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