Malicious PDF — malware analysis report

Static analysis result for SHA-256 8241e0cc6183b09b…

MALICIOUS

PDF

99.6 KB
MD5: 096089b350db46afa8d1be49da0efc5c SHA-1: da694ca425d671ff111b3006617b3bec3bdb6e18 SHA-256: 8241e0cc6183b09b1a58e608c366ab2b5b025d8f72552675bb4287dc2364f961
116 Risk Score

Malware Insights

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

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader, specifically targeting XFA forms. The embedded script payload, likely JavaScript given the XFA context, is designed to execute arbitrary code. This execution is typically used to download and run a secondary malicious payload, although the specific payload and its destination are not detailed in the provided evidence.

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
b246eb9b41bf3b8772cee74e74d725b62854d788b5a13022a2f31bffe2f67f1f		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101252 bytes

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