Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbcea5514f49e869…

MALICIOUS

PDF

12.8 KB
MD5: 5275c3577b9d753a8eb35139d827dc43 SHA-1: 51e41d16de1d047f90ffb913c212aa67b6be31b9 SHA-256: dbcea5514f49e869830d3676ca46d130c8c99eb0f07d18abf13599d6417218ca
128 Risk Score

Malware Insights

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

The sample is a PDF file that contains an XFA form, which is known to be a vector for exploits. Specifically, the 'CVE_2010_0188' heuristic indicates exploitation of LibTIFF within Adobe Reader. The 'CLAMAV_DETECTION' heuristic further confirms its malicious nature, identifying it as Js.Exploit.HTML-30. The embedded URL is likely related to the exploit delivery mechanism.

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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