Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b5fd2dda7b3aee4…

MALICIOUS

PDF

99.8 KB
MD5: 83af44164f7b608bcfb72fe895a29cfb SHA-1: ce55b77645c8f0d499c77b56ecab944d1d0b4b87 SHA-256: 6b5fd2dda7b3aee4f7fcb396544a08a631fe9dc06689d330871cc44010480797
116 Risk Score

Malware Insights

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

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's handling of XFA forms. The exploit targets a known vulnerability in LibTIFF, which is used by Adobe Reader for XFA image processing. The embedded script payload indicates an attempt to download and execute a secondary stage. The ML classifier strongly flags this PDF as malicious.

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
bbaea0a65178acfdec5a4c97a0850049f4cddb8a7fbd69033fd5d85630d10848		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101438 bytes

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