Malicious PDF — malware analysis report

Static analysis result for SHA-256 6810d0dd9ee07ace…

MALICIOUS

PDF

99.5 KB
MD5: e140f71329f598b203268be7582c3a10 SHA-1: 449828d1c44ba01441495acaf5d1a678bf76753f SHA-256: 6810d0dd9ee07ace00d24d5f5f7fa5de8a3c86ad170a458709262fdfa01e204c
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 vulnerability in Adobe Reader's XFA form processing. This exploit is designed to execute arbitrary code, which is often used to download and run additional malicious content. While the embedded JavaScript is obfuscated, its presence and the critical exploit firing strongly indicate a malicious intent to compromise the user's system.

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
feee9e3c962bf8e97a4a5a970b1b987c08502b129fc7a4288313fed03a7d34a2		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101114 bytes

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