Malicious PDF — malware analysis report

Static analysis result for SHA-256 90d479e8bcc34982…

MALICIOUS

PDF

24.2 KB
MD5: fa2143a8f3cc31f3fa440df2120b850e SHA-1: f84743236e93e3296f6923ace4e7a8023f539571 SHA-256: 90d479e8bcc3498258aa611be584e8e1d1538bcdaea81c345bcb216fc9ce0c85
128 Risk Score

Malware Insights

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

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability, which is a known exploit targeting Adobe Reader's handling of XFA forms. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure. The heuristic firings strongly indicate exploitation for client execution.

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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