Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a689b392e52e016…

MALICIOUS

PDF

78.4 KB
MD5: 9bc86a7de49d4edb073b0262d58f35e6 SHA-1: 2f20da283f13f49ac9c02ae85055edd9573ddf67 SHA-256: 5a689b392e52e0169c4f7270146b3aaa27223111daa4c66dbbbca77f3f2791f6
116 Risk Score

Malware Insights

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

This PDF file is identified as malicious due to the critical heuristic firing for CVE-2010-0188, indicating an exploit for Adobe Reader's LibTIFF component. The presence of XFA forms and embedded script payloads further supports this finding. The exploit likely facilitates the execution of arbitrary code, potentially to download and run a secondary payload, aligning with the T1203 (Exploitation for Client Execution) technique.

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
df3ffcb53a9c6fcfc5718229f24e4c196f2ab66b9b55d8143fe14f066e372d47
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 79486 bytes