Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bc5c413e832c947…

MALICIOUS

PDF

102.0 KB
MD5: 07824baa3f8bebc9406a4b4477b42405 SHA-1: b1a053964d298b61f76712662b63dd1e8bc93264 SHA-256: 7bc5c413e832c94738bdfbab4c593624f5d181939aa98b08a0177059c63e000c
168 Risk Score

Malware Insights

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

This PDF file is identified as malicious due to the critical heuristic firing for CVE-2010-0188, an Adobe Reader exploit targeting LibTIFF XFA images. The embedded JavaScript, although obfuscated, is indicative of malicious scripting activity. The ML classifier and ClamAV detection further support the malicious classification, suggesting the file is designed to exploit this vulnerability for initial execution.

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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000346.bin
37403e071a4e299d2e5c08c035305eaec410f72636d8b1bfd23332c026176bd6
pdf-embedded-script PDF raw stream script payload at offset 0x346 103671 bytes