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neurowise.dll

TessView

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module neurowise.dll by TessView has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from install-cdn.neurowise.info and multiple other hosts.
Publisher:
neurowise  (signed by TessView)

Product:
neurowise

Version:
1.0.0.6

MD5:
f92b98a767d248e42dbad66df0cd40e1

SHA-1:
b455e82cde49c1f933824970302affb043021c50

SHA-256:
ba1a601f411b5566022e4397b0028aeb841b64a933620b6aa0bd0b6b9f75a1a5

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
11/24/2024 2:52:25 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.TessView (M)
16.3.2.21

File size:
244.3 KB (250,144 bytes)

Product version:
1.0.0.6

Copyright:
(c) neurowise. All rights reserved.

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\neurowise.dll

Digital Signature
Signed by:
TessView

Authority:
VeriSign, Inc.

Valid from:
2/4/2014 7:00:00 AM

Valid to:
2/5/2015 6:59:59 AM

Subject:
CN=TessView, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=TessView, L=Santa Monica, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
3F35E503136B53896D71C7902553287E

File PE Metadata
Compilation timestamp:
1/26/2015 1:29:11 PM

OS version:
6.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:lcJBot/Cq/itJwlKXt6SSkFhTwGgujTci+nIaII8fwWp2zd:l1b/itDXtDSeAIlL2zd

Entry address:
0x12854

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, 41, 8D, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 07, 00, 00, 00, 83, C4, 0C, 5D, C2, 0C, 00, 6A, 0C, 68, 80, 30, 03, 10, E8, BD, 01, 00, 00, 33, C0, 40, 8B, 75, 0C, 85, F6, 75, 0C, 39, 35, 04, 78, 03, 10, 0F, 84, E4, 00, 00, 00, 83, 65, FC, 00, 83, FE, 01, 74, 05, 83, FE, 02, 75, 35, 8B, 0D, 0C, A5, 02, 10, 85, C9, 74, 0C, FF, 75, 10, 56, FF, 75, 08, FF, D1, 89, 45, E4, 85, C0, 0F, 84, B1, 00, 00, 00, FF, 75, 10, 56, FF, 75, 08, E8, 11, FE, FF, FF, 89, 45, E4...
 
[+]

Entropy:
6.3613

Developed / compiled with:
Microsoft Visual C++

Code size:
159 KB (162,816 bytes)

The file neurowise.dll has been seen being distributed by the following 2 URLs.

http://install-cdn.neurowise.info/bed?r=2015012618&bet=3

http://install-cdn.neurowise.info/bed?r=2015012623&bet=3

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