PDF malware analysis — malicious · 15b46d246e92a60a

MALICIOUS

PDF

99.8 KB

MD5: efb9d99a2561e9a7fc28b7bed4476a1f SHA-1: 54159d27a6a836c8813d6fb3140430c22b2a2c8c SHA-256: 15b46d246e92a60a747289a5b3c32a1225bed2bd1ddb9007e20cb78fff38ce8e

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The sample is a PDF file that exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. This exploit is designed to achieve arbitrary code execution, which is often used to download and run a secondary malicious payload. The ML classifier strongly indicates maliciousness, and the presence of an embedded script payload further supports this conclusion.

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.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `d2e6c40c51bf3e1ec4d461898173e9f1ebefbde78f043df42cbf84a56e1c9c41`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101404 bytes

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