Malicious PDF — malware analysis report

Static analysis result for SHA-256 12aa471dd6186a04…

MALICIOUS

PDF

101.8 KB
MD5: 9741509c1dd6e8417a41aee8f9e747f6 SHA-1: ff0f8a911f8f5148cf5975808e7488e24d3b8414 SHA-256: 12aa471dd6186a04363107a558ce3b968ee2bbfb7a846c27d0190aa076f06f34
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. The embedded JavaScript, though obfuscated, likely contributes to the execution of the exploit. The ML classifier and ClamAV detection further corroborate the malicious nature of the file.

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
3783ef6fcc19171c8b023685174c21bdb0cc46e412fa0f49421d1432d3b7156c
pdf-embedded-script PDF raw stream script payload at offset 0x346 103503 bytes