Malicious PDF — malware analysis report

Static analysis result for SHA-256 04924ed405e02700…

MALICIOUS

PDF

99.5 KB
MD5: cea9bcfad0fa897f78cae51271eb530b SHA-1: bc4a86a9fd487a62b6e96d6f45010010aabe804d SHA-256: 04924ed405e0270024af2b09eaee9ed6c022c2316586bd4a4b4c315e8dbab900
116 Risk Score

Malware Insights

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

This PDF file is identified as malicious due to the critical heuristic firing for CVE-2010-0188, an exploit targeting Adobe Reader's XFA form processing. The embedded script payload and the nature of the exploit suggest it is designed to download and execute a secondary stage. The benign URLs present do not detract from the malicious nature indicated by the exploit.

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
7d0dfb3fcd52a8a07c8dedfdafb6ca0c519cee7525c8d89c6c8d15cb5209ff3f		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101181 bytes

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