Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bc649d636d916e0…

MALICIOUS

PDF

99.8 KB
MD5: af07ad73d455734e6c8bfae5ebb2ea1c SHA-1: 2acdeb041375aec638cd609fbaddc01e09109b99 SHA-256: 5bc649d636d916e0e8995f3a10ad344e3284724fd2fbe31bdb17e32a723ae069
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 presence of an exploit targeting CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms. The embedded script payload within the XFA form is designed to leverage this vulnerability for code execution. While the exact nature of the secondary payload is not detailed, the exploit's presence strongly suggests an attempt to compromise the user's system, likely for further malware deployment.

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
f846eeac87dcee83f97beefd5207fdabaf9433b96cc6ce391fd5e6723aed4601		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101434 bytes

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