Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4b95518afdf68d4…

MALICIOUS

PDF

24.1 KB
MD5: f7e7fd851cc090316311f251835d9585 SHA-1: a2ef1da7203541022d9829b9c2efbc86e6cc9ced SHA-256: f4b95518afdf68d4523f173b32c3e1c04511d74a149a4998c703a8ecdeb9e214
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.002 Phishing: Spearphishing Attachment

The sample is a PDF file that contains an XFA form, which is a known vector for exploitation. Specifically, the critical heuristic 'CVE_2010_0188' indicates the exploitation of a LibTIFF vulnerability within Adobe Reader. This exploit is designed to achieve arbitrary code execution on the victim's machine. The embedded URL, while not directly malicious in this context, is part of the XFA template structure.

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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