Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bd31e23a7479098…

MALICIOUS

PDF

4.2 KB
MD5: c73a5b446230e84e8cd834ed9f415e2f SHA-1: 9dd1fdc4a3c5479a7b2620f831da870c59f502b7 SHA-256: 6bd31e23a7479098f593106a4ecd31c27b2e13e492a5dbed365ad9daf9035b58
116 Risk Score

Malware Insights

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

The PDF sample contains an embedded XFA form and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader. This exploit is designed to achieve code execution, typically to download and run additional malicious content. The ML classifier strongly indicates maliciousness, and an embedded script payload was detected.

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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • 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://ns.adobe.com/xdp/1.0\
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
247126a0be44faa4a0b9b1022cf1fe993cdcbf5003aa60bbb101dbaf7f72353c
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xEA 13061 bytes