Malicious PDF — malware analysis report

Static analysis result for SHA-256 8561678d1d2f889c…

MALICIOUS

PDF

24.5 KB
MD5: a318e02cd2cdb6f5517366161f0f11d6 SHA-1: 99d8920ba59892acc948e699f86915a8322f56ea SHA-256: 8561678d1d2f889c921678f5fc969e61d35c0cd70d91c40e91258f5d7858feb6
128 Risk Score

Malware Insights

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

The sample is a PDF file that leverages an XFA form to trigger the CVE-2010-0188 exploit in Adobe Reader. This exploit is known to be used for delivering malicious payloads. The embedded URL, while seemingly benign, is part of the XFA structure and likely used in the exploitation chain. No scripts were extracted, and the document body content is obfuscated and unreadable.

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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