Malicious PDF — malware analysis report

Static analysis result for SHA-256 671a8bf2de705e3e…

MALICIOUS

PDF

16.3 KB
MD5: 088b3dd525ce5a45223ca64c56e85564 SHA-1: 75976c10d926d0c2d1d4cc464f7245d64ab8f999 SHA-256: 671a8bf2de705e3e61584aa5efaa2377ac49c6323694c7957157d23e19c12137
168 Risk Score

Malware Insights

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

The PDF file contains embedded XFA content and triggers the CVE-2010-0188 exploit, indicating it's designed to execute arbitrary code. An embedded JavaScript payload was also detected, which likely contributes to the exploit's execution chain. The specific nature of the payload is obfuscated, but the exploit and script confirm 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_00000359.bin
46f9328dffed2d873f9f5d44bd4b938b215bc2893befb6a983069ca191e5ca38
pdf-embedded-script PDF raw stream script payload at offset 0x359 15942 bytes