Malicious PDF — malware analysis report

Static analysis result for SHA-256 07a658dbdd12c3f3…

MALICIOUS

PDF

99.8 KB
MD5: b843087cddd194ff7e3a36919d316ae1 SHA-1: fc34c76c984f8a570968481a179936e58e2d4279 SHA-256: 07a658dbdd12c3f3e5d429dda05455e30160a9555680f090698d8a9b761ec8b0
116 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form that exploits CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF component. This exploit is designed to execute arbitrary code, and the presence of an embedded script payload suggests it is used to download and run a secondary malicious payload. The benign URLs found are related to XFA schema definitions and do not indicate malicious activity.

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
e4f1a9e0518f5fe2f8cb07ff6d0490f6d34de73afc2542d5e3d9c32a7236a7e6
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101468 bytes