Malicious PDF — malware analysis report

Static analysis result for SHA-256 05ebbdbed6bc704b…

MALICIOUS

PDF

99.8 KB
MD5: a4ef19c3b5ba6b0eb8a54586dec9131e SHA-1: a711e2f581b842a042cbab45488a0e95bdf6b01f SHA-256: 05ebbdbed6bc704bc4ba4909bc21f03632a8bf5cf319b69727e02c08a4f38d08
116 Risk Score

Malware Insights

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

The PDF sample contains embedded XFA forms and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader. This exploit is used for client-side code execution, likely to download and run a secondary payload. No specific malware family could be identified.

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
41ab01e675b406980dbde30213c0aa8629b446d364c7e295a1bb606eab64300a
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101404 bytes