Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c57c4c2241281e0…

MALICIOUS

PDF

24.2 KB
MD5: 952afad8dfc928fef8955727f620bd39 SHA-1: 2e8809c2f142bd3cab9640e6ca56b1c396f15872 SHA-256: 0c57c4c2241281e068b18f46c6a7c75db9229d04371c4316b96a5f56bb81cd3e
160 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by multiple engines, including ClamAV and a machine learning classifier. It contains an embedded XFA form and exploits CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF component, to achieve code execution. The embedded URL, while seemingly benign, is present within the context of an exploit, suggesting it could be part of a malicious 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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