Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dbadd45ab5fcb1e…

MALICIOUS

PDF

99.8 KB
MD5: 921a1c279942100821caf4cb17603581 SHA-1: db62a4d0f66375ee8caa273699b39ce0b92d164d SHA-256: 5dbadd45ab5fcb1effe21fdef4eaa0fff5968e788ccd0501e6a16499db96d9cc
116 Risk Score

Malware Insights

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

This PDF file is identified as malicious due to the critical heuristic firing for CVE-2010-0188, indicating an exploit for Adobe Reader's LibTIFF component. The presence of XFA forms and embedded script payloads further supports this, suggesting the file is designed to execute arbitrary code upon opening. The exploit likely facilitates the download and execution of a secondary payload, though no specific URLs for this are present in the extracted evidence.

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
95541eeb347af0efc49c10e94c39e70a16879e035b85cf6ac0c4b7ac78864122		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101450 bytes

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