Malicious PDF — malware analysis report

Static analysis result for SHA-256 84c6b1eea10e21a9…

MALICIOUS

PDF

24.1 KB
MD5: acc0dceaceb06232f1be36c949a1915f SHA-1: ed4cfb1da95731f3ce16a910ec4edcbd751dd930 SHA-256: 84c6b1eea10e21a9bc602a98d09f35443a0c0816f1a5971f347e56012c9e9324
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. Static analysis indicates it exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component, which is often used in XFA forms. This exploit allows for arbitrary code execution, typically to download and run a secondary payload. The embedded URL, while seemingly benign, is part of the XFA template structure and not directly indicative of a malicious C2 server.

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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