Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ad93a76c8a04a99…

MALICIOUS

PDF

24.1 KB
MD5: cf8c4d4759936421744b412d57612be1 SHA-1: 71f1a6f9021017b1f345e5191f7e8fc6c320b2aa SHA-256: 8ad93a76c8a04a9941e22ad6910d3faea954bd34a46014c7b3eb2b8587adb33a
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1190 Exploit Public-Facing Application

The file is a PDF document that leverages the CVE-2010-0188 vulnerability associated with XFA forms in Adobe Reader. This exploit is designed to download and execute a secondary payload, as indicated by the critical heuristic firings. The embedded URL, while seemingly benign, is part of the XFA template structure and could be used in conjunction with the exploit.

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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