Malicious PDF — malware analysis report

Static analysis result for SHA-256 423c82525ff90359…

MALICIOUS

PDF

24.1 KB
MD5: 61af57b24dcd5c090daf701915e63b4c SHA-1: 9aa3c84fef1c3f73e9984900e4b46e1e743614a7 SHA-256: 423c82525ff903598a531b27ec9091a1238ab1b8732cb6a78ba4e591d4d7154c
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1059 Command and Scripting Interpreter T1059.001 Command and Scripting Interpreter: PowerShell

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA images. The embedded XFA payload is decoded from a raw stream, indicating an attempt to execute arbitrary code. The presence of an embedded URL further supports the malicious intent, likely to download a secondary payload. The document body contains obfuscated JavaScript, which is likely part of the exploit chain.

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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