Malicious PDF — malware analysis report

Static analysis result for SHA-256 85f79659484b44c4…

MALICIOUS

PDF

99.6 KB
MD5: 978b91a0f8de730402f3b6825c7a8c17 SHA-1: 80e217bcb62bb8ce0b494e4219cf7265f16dc287 SHA-256: 85f79659484b44c4c5f9272ba14f16cae93126f277f3d9864d127bfe22c30ca9
116 Risk Score

Malware Insights

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

This PDF file is flagged as malicious by an ML classifier and contains a critical heuristic indicating exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF component. The XFA form structure suggests the exploit payload is embedded within the document's streams. While no specific URLs or scripts were directly extracted, the exploit's nature implies it's designed to download and execute a secondary payload.

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
4a126d77bc28cbedc74590e6c7c483369c79860ce4f8de490852150464576f8c		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101237 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.