Malicious PDF — malware analysis report

Static analysis result for SHA-256 6599806743628ba6…

MALICIOUS

PDF

99.5 KB
MD5: 2a79145e6eb7dba2d92523f29eb9892e SHA-1: 09fc166657d3500c4004908262fbe24b0c2fe30b SHA-256: 6599806743628ba6b0f73d73eceb6cb7b77723e3768917178ad1c54187057b53
116 Risk Score

Malware Insights

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

This PDF document is malicious, leveraging the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms. The exploit is embedded within the XFA structure and is designed to execute arbitrary code. While no specific script was directly extracted, the exploit's nature suggests it would download and execute a secondary payload. The ML classifier strongly indicates maliciousness.

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
31f5cfdd7914923cf0eb8d848baaad8e3ec2635bbc9d92ddf384019e643eb730		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101153 bytes

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