Malicious PDF — malware analysis report

Static analysis result for SHA-256 73c6399de08d15ee…

MALICIOUS

PDF

73.2 KB
MD5: 6f776cbbb38bacfbcffce707f6747c41 SHA-1: 842b08472c0e6acf5b9368e86fb2aed13881bc4d SHA-256: 73c6399de08d15ee0e5dcd93a3459c6cae9cb00cd7e28f7d0f6699007ed096e1
168 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript that is likely part of an exploit chain targeting CVE-2010-0188 in Adobe Reader. This exploit is designed to achieve client-side code execution. The embedded script's content is heavily obfuscated, but its presence within an exploit context strongly suggests 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_0000034e.bin
1e3903d958ae33b8ae8cd4a75aacac2e070fb557aac673fb237099aa0b3f9dc9
pdf-embedded-script PDF raw stream script payload at offset 0x34E 74182 bytes