Malicious PDF — malware analysis report

Static analysis result for SHA-256 60353d63792f97e6…

MALICIOUS

PDF

99.6 KB
MD5: e691c65bdb5664eae11d5387b7e952b5 SHA-1: 15e0caee97cf810ea7e2ad2f55519f540195d02f SHA-256: 60353d63792f97e652143ac196e056e6cef1c7df90edff88931ddd4f1e3b9b01
116 Risk Score

Malware Insights

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

The PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component via XFA forms. This exploit is designed to execute arbitrary code, which is often used to download and run a secondary malicious payload. The ML classifier strongly indicates maliciousness, and the embedded file further supports this assessment.

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
5fdb60d23942e5703625eecaab27ae07ab0fcfad1d4d040bee5e5d56c15622ec
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101243 bytes