Malicious PDF — malware analysis report

Static analysis result for SHA-256 8801c6523888bddb…

MALICIOUS

PDF

20.1 KB
MD5: 5faafd8a817d569146b4f2d3638c3e0c SHA-1: fc6c7df28b42e91628259761cf35dbf914e591dd SHA-256: 8801c6523888bddba1748bc9c55b1396e918b0b332058f11141795b8e4fd7ad8
160 Risk Score

Malware Insights

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

The file is a PDF that contains an XFA form, which is known to be a vector for exploiting vulnerabilities like CVE-2010-0188 in Adobe Reader. The heuristic firings strongly indicate exploitation for client execution. The embedded URL is likely used to download a secondary payload, suggesting a spearphishing attachment delivery method.

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-36826 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36826
  • 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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