Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e6d8a3ed2f79d9b…

MALICIOUS

PDF

12.6 KB
MD5: dd6b9dab3e4b3c6fd9fed51a5ea35fb1 SHA-1: 7e79b35904f857c57dd0f50ea9cc4720d094cb84 SHA-256: 6e6d8a3ed2f79d9b6fcb0608e7450feae9964c24034b47ea62a7ab9cdd246eab
168 Risk Score

Malware Insights

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

The PDF file contains embedded XFA (XML Forms Architecture) content, which is known to be a vector for exploits. Heuristics and ClamAV detection confirm this is a malicious PDF exploiting CVE-2010-0188. The embedded script, while heavily obfuscated, is identified as JavaScript and likely contributes to the exploitation process by downloading or executing a secondary payload.

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
2edf265774039fc8e58971ac3e73116357b6c71f6365bbe58ca4e7b6fc68c4af
pdf-embedded-script PDF raw stream script payload at offset 0x359 12185 bytes