Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d31eee208bf9944…

MALICIOUS

PDF

99.6 KB
MD5: c2f38ff0606ddfe28ff5546327275c28 SHA-1: 28d06924b98ad1bdb517d1dc414ac2183743871d SHA-256: 7d31eee208bf994405c3dd3856421898cea89ea377575a7c625ee80ac5eea155
116 Risk Score

Malware Insights

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

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. The critical heuristic firing indicates a decoded XFA payload was found, suggesting the PDF is designed to execute code. While no specific malicious URLs or scripts were directly extracted, the exploit itself is the primary indicator of malicious intent, likely to download and execute a second-stage 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
378411be043870f8058d8811ad9956cc478cad224cc6349905d1dea2b9e0ea1f		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101283 bytes

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