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ttessabsetup.exe

Ttessab

This is the installer and setup program from the Ttessab 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 Windows service that will update the software with additional features. The application ttessabsetup.exe by Ttessab has been detected as adware by 26 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:
Ttessab  (signed and verified)

MD5:
d3ee53e70c26538cc3097b2d41fe039e

SHA-1:
b6c211164ee2d4a2eea48b00b04b85fc27caacf5

SHA-256:
5f77c08b16760815c87d6ac50a8059404c365d3e06071af6027def716dc15914

Scanner detections:
26 / 68

Status:
Adware

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

Analysis date:
4/29/2024 7:16:14 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.BN
709

AhnLab V3 Security
PUP/Win32.SwiftBrowse
2015.02.22

Avira AntiVirus
ADWARE/BrowseFox.Gen
7.11.211.248

AVG
BrowseFox.H
2016.0.3187

Baidu Antivirus
Adware.Win64.BrowseFox
4.0.3.15225

Bitdefender
Adware.BrowseFox.BN
1.0.20.280

Dr.Web
Trojan.BPlug.181
9.0.1.056

Emsisoft Anti-Malware
Adware.BrowseFox.BN
8.15.02.25.04

ESET NOD32
Win64/BrowseFox.U potentially unwanted (variant)
9.11212

Fortinet FortiGate
Riskware/BrowseFox
2/25/2015

F-Secure
Adware.BrowseFox.BN
11.2015-25-02_4

G Data
Adware.BrowseFox.BN
15.2.25

IKARUS anti.virus
AdWare.BrowseFox
t3scan.1.8.6.0

K7 AntiVirus
Trojan
13.197.15042

Malwarebytes
PUP.Optional.BPlug
v2015.02.25.04

McAfee
Artemis!D3EE53E70C26
5600.6843

MicroWorld eScan
Adware.BrowseFox.BN
16.0.0.168

NANO AntiVirus
Trojan.Win32.BPlug.dfsehz
0.30.0.296

nProtect
Adware.BrowseFox.BN
15.02.17.01

Qihoo 360 Security
Win32/Virus.Adware.80e
1.0.0.1015

Reason Heuristics
PUP.Installer.Yontoo
15.2.25.16

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.15223

Sophos
Generic PUA BO
4.98

Trend Micro House Call
TROJ_GEN.F0C2C00BI15
7.2.56

Trend Micro
TROJ_GEN.F0C2C00BI15
10.465.25

VIPRE Antivirus
Trojan.Win32.Generic
37764

File size:
569.5 KB (583,168 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\ttessabsetup.exe

Digital Signature
Signed by:
Ttessab

Authority:
VeriSign, Inc.

Valid from:
9/19/2013 5:30:00 AM

Valid to:
9/20/2015 5:29:59 AM

Subject:
CN=Ttessab, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Ttessab, 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:
198AA4CA33AF1FC06C47646A032C938B

File PE Metadata
Compilation timestamp:
12/6/2009 4:22:01 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:YtNjoY18VcGy1s15Ap/G/8/3D0Fw/tN8dkmLtpHHHrh7NetwMOUM2m4:YbEVcGy6j8/z0FmcLbH1elR

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:
7.9813

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The file ttessabsetup.exe has been seen being distributed by the following URL.

http://vzbucket.maxrevinstaller.com/Ttessab/.../TtessabSetup.exe

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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