Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a2dfc111a9ff366…

MALICIOUS

PDF

24.1 KB
MD5: 161f8fba2a1efd593df6e4eed930d2d4 SHA-1: 6351eccaa5b8aba72db32755719fee08c6b37ef0 SHA-256: 0a2dfc111a9ff366c3bbc417f320dd367e0b4a7e3c5dbd50c2b8468ea3145344
160 Risk Score

Malware Insights

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

The sample is a PDF file that contains an XFA form and triggers the CVE-2010-0188 exploit, which is known to be used for arbitrary code execution. The embedded URL is likely part of the exploit chain. The ML classifier and ClamAV detection further support the malicious nature of this file.

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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