Malicious PDF — malware analysis report

Static analysis result for SHA-256 1637de8e926e15c4…

MALICIOUS

PDF

79.1 KB
MD5: d58328d6a51ad3b6d596793930414016 SHA-1: 935ae1dffff98137dba24de6444dee12ff4d7ded SHA-256: 1637de8e926e15c42c72414bdba6de74f278c0ec654992ffabfabc27b3bb6bc9
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, an Adobe Reader LibTIFF XFA image exploit. The embedded script payload and XFA form further indicate malicious intent. The exploit likely facilitates the execution of arbitrary code, potentially to download and run a secondary payload, aligning with the T1203 (Exploitation for Client Execution) technique.

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
c55517d89e06aa361af12fd36e14edd20334f05a47246860f52a5ddbdbe7453e		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80258 bytes

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