Malicious PDF — malware analysis report

Static analysis result for SHA-256 677c719f2fb065c6…

MALICIOUS

PDF

79.6 KB
MD5: 47271b689797fd262258cceb3a65fc4d SHA-1: 9bd973efd845b3476b2242eb66947041d8f9a3d4 SHA-256: 677c719f2fb065c609d729d33096293a2c7150b6adc1f315344475ca1eb0fab3
168 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The file is a PDF that triggers a critical heuristic for CVE-2010-0188, indicating exploitation of a known Adobe Reader vulnerability. Embedded JavaScript within the XFA form is likely responsible for executing the exploit. While the script is heavily obfuscated, its presence and the exploit firing strongly suggest a malicious intent to compromise the user's system.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000288.bin
1b9ea19008c60aee5383e717183663544b1806210f12c46a470faa20f29718ba		 pdf-embedded-script PDF raw stream script payload at offset 0x288 80795 bytes

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