Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a409069f57c2a11…

MALICIOUS

PDF

12.6 KB
MD5: 360066b00bb408756830e18c2c1fdf0d SHA-1: 03abd2b8c0e8b95a63d8212aec74a96d62e5957c SHA-256: 0a409069f57c2a11fd1c951fba8d2bb06dd919fd3ee828b8f6528adcc9c450d6
168 Risk Score

Malware Insights

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

The PDF file contains embedded XFA content which is known to be vulnerable to CVE-2010-0188, a critical exploit targeting Adobe Reader. The embedded JavaScript attempts to download and execute a second-stage payload, as indicated by the heuristic firings and the structure of the script. The ML classifier and ClamAV also strongly indicate maliciousness.

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_00000359.bin
f0bb65f1b95d51ad3c5ae10002bbba65024bcca44552d371c093d311177f6b76
pdf-embedded-script PDF raw stream script payload at offset 0x359 12209 bytes