Malicious PDF — malware analysis report

Static analysis result for SHA-256 63097be10b476d43…

MALICIOUS

PDF

24.0 KB
MD5: 121262ef2a65126d2a834225efa0a0fb SHA-1: 426be438251b22378d2100302374e7a448abb27f SHA-256: 63097be10b476d43236e1969b5e6ecc4746cfc39f623d6e68bf0be2192d04e4d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The file is identified as malicious by multiple heuristics, including a critical detection for CVE-2010-0188, an Adobe Reader exploit targeting XFA forms. The ML classifier also strongly flagged the PDF. The embedded URL, while seemingly benign, is part of the XFA structure which is exploited. The exploit likely leads to the execution of a dropped payload, hence the T1203 technique.

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: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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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