Malicious PDF — malware analysis report

Static analysis result for SHA-256 04f965820f946c1e…

MALICIOUS

PDF

99.7 KB
MD5: d081247c16d461e4c12bf81a04d00ae6 SHA-1: 5df82e42020fa6cac741c820c6202530e92dae4a SHA-256: 04f965820f946c1e129d6f13346bb926f52cca523c02bd196d4e40e0af6f6dc5
116 Risk Score

Malware Insights

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

The PDF sample contains embedded XFA form data and triggers the CVE-2010-0188 exploit, which is known to be used for arbitrary code execution. The embedded script payload suggests an attempt to download and execute a secondary stage. While no specific family is identified, the exploit and embedded script are strong indicators of malicious intent.

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
1c76b86c9bd99ee7f74726fa75549febd93be43b44cc97a1aadb4d14887a65c2
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101374 bytes