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setup.exe

trolatunt

This is the installer and setup program from the trolatunt branded Yontoo adware web browser extension. This adware injects various forms of advertisements in the user's web browser based on the HTML content and URLs viewed. Ad include banners, in-line context text links, coupons, and search. The program will install an auto-updating background service that will update the software with additional features. The application setup.exe by trolatunt has been detected as adware by 10 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
trolatunt  (signed and verified)

MD5:
7774afd53050a41a2b447c169d416ad6

SHA-1:
20efeceab9537f66ab46be99df65ef609cf366da

SHA-256:
0beb858e0f7b82e5eb8d9675d8a1a40e3170b16fce9d87335c9b57817db09adb

Scanner detections:
10 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/19/2024 10:17:42 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
BrowseFox
2015.0.3400

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14728

Comodo Security
Application.Win32.Ciorik.RWLZ
18984

Dr.Web
Trojan.BPlug.90
9.0.1.0209

ESET NOD32
Win32/BrowseFox
8.10158

McAfee
Artemis!7774AFD53050
5600.7056

Reason Heuristics
PUP.Installer.trolatunt.F
14.7.28.10

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14726

SUPERAntiSpyware
Adware.BrowseFox/Variant
10456

VIPRE Antivirus
Trojan.Win32.Generic
31634

File size:
961.1 KB (984,216 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
trolatunt

Authority:
VeriSign, Inc.

Valid from:
8/21/2013 2:00:00 AM

Valid to:
8/21/2015 1:59:59 AM

Subject:
CN=trolatunt, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=trolatunt, L=San Diego, 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:
16E5B55BC9746E627E43F6A38DDE3E80

File PE Metadata
Compilation timestamp:
12/5/2009 11:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:iY3GF6j8+R1Dz0FmcLbH1zm2vJP/JA2h9rs6lM8:h3Gsj8kz0gSpvpR9plM8

Entry address:
0x30CB

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 38, 6F, 44, 00, E8, F1, 2B, 00, 00, A3, 84, 6E, 44, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, 9C, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 2E, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, F0, 46, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9907

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to wac.edgecastcdn.net  (72.21.81.13:80)

TCP (HTTP):
Connects to service.yontoo.com  (8.25.35.148:80)

TCP (HTTP):
Connects to api.yontoo.com  (8.25.35.15:80)

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