Malicious PDF — malware analysis report

Static analysis result for SHA-256 7258217c390e0fd4…

MALICIOUS

PDF

100.0 KB
MD5: a0c2b5fb75c75363c80a37824b48fca8 SHA-1: 2d883e5c5b36dfd63e08c5e5d4b2db84a9e272aa SHA-256: 7258217c390e0fd4ffe273d7b82bb7b144b8166d798df5d397bd4d8ec60e8273
116 Risk Score

Malware Insights

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

The PDF file contains an embedded script that leverages the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. This exploit is designed to achieve arbitrary code execution, enabling the download and execution of additional malicious content. The ML classifier strongly indicates 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
a51c03156541a93e9b4d486a48fb13fc248f91c253951c517856fb0ee3e4cfbc
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101621 bytes