Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ebec6543594fd1f…

MALICIOUS

PDF

78.7 KB
MD5: e3a0d0ae405d1ee4142106be06bad2f3 SHA-1: 8c48483f7980207c41ca1f8bf24bc6aa435de3ff SHA-256: 6ebec6543594fd1fdbe31c0a8a67027f98e2ecd1148fc1c967b3fd7e14086ce8
116 Risk Score

Malware Insights

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

The PDF sample contains an embedded XFA form and triggers the CVE-2010-0188 exploit, indicating it's designed to compromise Adobe Reader. The embedded script payload, likely JavaScript given the PDF context, is expected to download and execute a secondary stage. The ML classifier strongly flags this PDF as malicious.

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
13e315fd572ed766ffa5feaa5e8408527bcf3dfe1f1d727cdbe5f56b39403757
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 79835 bytes