Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f36d4ecfb252f9f…

MALICIOUS

PDF

99.5 KB
MD5: 14a99328556cc5252ee35653625a484e SHA-1: a8e8ab9614bd33621dc20756f048937e525c3c40 SHA-256: 0f36d4ecfb252f9f369ffed84d0258ffe3ee2824674965c2b9fe278c0ef24d61
116 Risk Score

Malware Insights

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

The file is a PDF that leverages the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms. This exploit is designed to execute arbitrary code, which is often used to download and run additional malicious content. While the document body and scripts are heavily obfuscated and truncated, the critical heuristic firing and the nature of the exploit indicate a high likelihood of a malicious payload being delivered.

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
3fa3a7cdad9087da19509313da261847e388c17de8ba6a72787c78921472d3e6		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101106 bytes

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