Malicious PDF — malware analysis report

Static analysis result for SHA-256 0438007ee3f8585a…

MALICIOUS

PDF

99.8 KB
MD5: 95efaa05257f0567357cc5a1f1c90393 SHA-1: 869529bec3cdfc295461679bcaaa6fdfa5141c10 SHA-256: 0438007ee3f8585a96f9b5ac08bcd90bd1d803a8dd9d45467a13ee2e31ad54be
116 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and triggers the CVE-2010-0188 exploit, indicating it is designed to execute arbitrary code upon opening. The ML classifier strongly flags this PDF as malicious. No specific family could be identified, but the exploit suggests a downloader or dropper.

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
b29f47348efc2ebca393c70f37e0a34a3a2a0ea980cca54c0d50543e10a61b05
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101492 bytes