Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d8ecd55b973b66a…

MALICIOUS

PDF

102.0 KB
MD5: a4fed32caa066d6da8cdae07de076a17 SHA-1: 93254ea914e084c022238cee5b23c92ebfd0d261 SHA-256: 6d8ecd55b973b66a8f14e857417e4f2633ea2288c712f078767abe595bb25a8d
168 Risk Score

Malware Insights

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

The PDF file contains embedded XFA content which triggers the CVE-2010-0188 exploit, a known vulnerability in Adobe Reader. The embedded script, identified as JavaScript, is likely responsible for executing the malicious 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_00000346.bin
a482138e12482d5c545de0aa55710d4fd683e25d8b0943aa0506bbdd5e8bfd35
pdf-embedded-script PDF raw stream script payload at offset 0x346 103685 bytes