Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bb626d5aa929737…

MALICIOUS

PDF

12.8 KB
MD5: 4d4accb3671170785359bc86ba9a48b3 SHA-1: 406db9c48cd8ae042ed2fcc0bb60a5fc2dc79dca SHA-256: 2bb626d5aa929737dfa8ab6bb62efaf30031a199951eb9dd8bbfebd00cc0cc75
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. ClamAV also detected it as Js.Exploit.HTML-30, indicating embedded JavaScript exploitation. The embedded URL is likely part of the exploit chain. The XFA form data itself contains JavaScript that is likely responsible for triggering 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: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • 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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