Malicious PDF — malware analysis report

Static analysis result for SHA-256 12bd30b2ad2c0666…

MALICIOUS

PDF

99.6 KB
MD5: 298c20b9d82d829bb55c4ea14891cc95 SHA-1: dd3146d2bdf164742ff9a67e543715c379554f4f SHA-256: 12bd30b2ad2c0666e5a15cb180c658a9f992bf8e5d23853d90c16279bdd87b29
116 Risk Score

Malware Insights

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

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. The exploit targets XFA forms, a feature often used for interactive documents. The embedded script payload is likely responsible for executing the exploit and downloading a secondary stage, though its exact functionality is obscured.

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/
    • 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
e2e31dbecd9ae3fd51603b2c73d0e4999a1d02eba7746720ab856e1d0d834418
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101195 bytes