Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b77c4241d3a1f24…

MALICIOUS

PDF

24.1 KB
MD5: e7416ba8162d4a23a93c61b598ed9753 SHA-1: 023e7008e249d12536224e02d9a40a385dd7cf58 SHA-256: 5b77c4241d3a1f240675da3226221bc4a30c8577a79f68ea002084d7438d341a
160 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by multiple heuristics, including a critical detection for CVE-2010-0188, which is an exploit targeting Adobe Reader's XFA forms. The embedded URL, while seemingly benign, is part of the XFA structure. The document body contains obfuscated JavaScript-like content that likely attempts to download and execute a secondary payload, a common tactic for exploitation frameworks.

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.Agent-36821 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36821
  • 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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