Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fc6bb255f6989bc…

MALICIOUS

PDF

24.1 KB
MD5: 625c1a15a1168112f2b4d3015113c0bf SHA-1: eff9d53c1f5f72b1a86aaadad0d606bbf4895e1f SHA-256: 5fc6bb255f6989bc41d471e3f724539fdcafd7e959f36ee48fda1675255e6a8c
160 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by multiple engines, including ClamAV and a machine learning classifier. It contains an XFA form and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader's LibTIFF component for arbitrary code execution. The embedded URL, while benign in appearance, is associated with XFA templates and likely serves as 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: 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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