Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ea5ab3e340b2442…

MALICIOUS

PDF

78.6 KB
MD5: 613ec82833fbe84d70b01f96dc06284c SHA-1: ba05c55f1afa59e59f58e76f112a72730d6b6b57 SHA-256: 0ea5ab3e340b2442ca7bd45555de4b13c684d375de90e3ff14133f9953862317
116 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by a machine learning classifier. Static analysis detected an exploit for CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. This exploit likely allows for the execution of arbitrary code, potentially to download and run a second-stage payload. No specific malware family could be identified.

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/ In PDF document text
    • http://www.xfa.org/schema/xfa-template/2.5/In PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
32fae93e62db20cf7e43ad65005f526abafb0d9d227da388d5d47be08db4db01		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 79747 bytes

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