Malicious PDF — malware analysis report

Static analysis result for SHA-256 12692fa4e0c06ecd…

MALICIOUS

PDF

12.7 KB
MD5: f1a741dfdf8444f3d2839b5f1dc5d5d6 SHA-1: 6d41b6afdfd86e809e7e27bd5327eb3a6c2fbe19 SHA-256: 12692fa4e0c06ecdcd0594be58f25a98d9e2499a8119ed7c828bf9239993dc4c
168 Risk Score

Malware Insights

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

The PDF file contains embedded XFA content that exploits the CVE-2010-0188 vulnerability in Adobe Reader. The embedded script, which appears to be JavaScript, is likely responsible for executing the exploit payload. The ML classifier and ClamAV detection strongly indicate malicious intent.

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_00000384.bin
27f0589267fe4c8ab3392962e9b83cdad338f3c3a5dd01bfe102aab5a7d4a7f8
pdf-embedded-script PDF raw stream script payload at offset 0x384 12276 bytes