Malicious PDF — malware analysis report

Static analysis result for SHA-256 67500d92d5130f07…

MALICIOUS

PDF

99.8 KB
MD5: 23c6c807b372ced85c2031bf8d154f45 SHA-1: ae020544c74b0f70348f3ff9b9db1088646f7884 SHA-256: 67500d92d5130f0781a9d567557b6f67376440bc1512141a08d4f33bc2293ff6
116 Risk Score

Malware Insights

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

This PDF file contains an embedded script that exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. The heuristic firings indicate the presence of an XFA form and an embedded script payload, strongly suggesting an exploit designed for client execution. The ML classifier also flagged this PDF as highly 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
f8daf22d9139797a566c23cf5fc629730fc0999d0e2647c4e942ba6b0a48b3dc		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101434 bytes

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