PDF malware analysis — malicious · 5b3c66465069e9e2

MALICIOUS

PDF

99.8 KB

MD5: f078034b5ef35f713272600fcd63e885 SHA-1: 6fa54fe71787ec6d17f9ff3e0efc4c09f6e81a35 SHA-256: 5b3c66465069e9e22a976d46c8e683380ae9ad05cf1eef26dcc2decb81e84fb0

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains an embedded XFA form and triggers the CVE-2010-0188 exploit, which is known to facilitate client-side code execution. The embedded script payload suggests the PDF is designed to download and execute a secondary stage. While the script itself is heavily obfuscated, its presence and the exploit firing strongly indicate a malicious intent to compromise the user's system.

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` `09af87ecddbd680e87932861d7d69dddb2fe6ec0ff193beda62a158df5fbd204`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101401 bytes

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