Malicious PDF — malware analysis report

Static analysis result for SHA-256 14a11d1663f3d02b…

MALICIOUS

PDF

99.8 KB
MD5: 3e6a3b813e4ae10f63474d7d49a7b99a SHA-1: 4e3abb5a60a3f43e0d2b13b83e8b92636987fa5f SHA-256: 14a11d1663f3d02ba2ab9c7844478abc8c27e9a9762bef49e6c399bf7e278036
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader, specifically targeting the LibTIFF component within XFA forms. This exploit allows for the execution of arbitrary code, indicating a malicious intent to compromise the user's system. The ML classifier strongly supports this assessment.

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
8cfeb3d9b706ba69365483247cee3aff7e5d74c68b90ecda49ff4b662606a576		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101417 bytes

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