TSULoader.exe

Web Pick - Internet Holdings Ltd

This is a WebPick installer that bundles (with very minimal user consent) a number of adware browser extensions using the JustPlug.it browser framework. The application TSULoader.exe, “Installer for MiniApp” by Web Pick - Internet Holdings has been detected as adware by 19 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex (Tarma) installer. The setup program uses Web-Pick's InstalleRex download manager and installer to bundle potentially unwanted ad-supported software which includes toolbars and browser extensions through a pay-per-install monetization scheme.
Publisher:
MiniApp  (signed by Web Pick - Internet Holdings Ltd)

Product:
MiniApp

Description:
Installer for MiniApp

Version:
2014.4.27.1945

MD5:
eab60349c643ea516890fab256d3d4af

SHA-1:
64945d39dec0be9f72e02a7d9399ea00a8bbea84

SHA-256:
3f9ed52f9472e971b56ea047efb41dc8fe333d020b86c445edbd4fd951b9f40e

Scanner detections:
19 / 68

Status:
Adware

Explanation:
Uses the InstalleRex from WebPick Internet Holdings to install bundled add-ons including toolbars and other web browser extensions.

Analysis date:
4/16/2024 10:07:52 AM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.TSULoader
14.04.28

Avira AntiVirus
TR/Kazy.324119.17
7.11.145.244

avast!
Win32:Installer-AP [PUP]
2014.9-140428

AVG
MalSign.Generic
2015.0.3491

Comodo Security
Application.Win32.InstalleRex.KG
18173

Dr.Web
Trojan.WebPick.29
9.0.1.0118

ESET NOD32
Win32/InstalleRex
8.9728

G Data
Win32.Application.EZDownloader
14.8.24

K7 AntiVirus
Unwanted-Program
13.176.11896

Kaspersky
Trojan.Win32.AntiFW
14.0.0.3948

Malwarebytes
PUP.Optional.InstalleRex
v2014.04.28.11

NANO AntiVirus
Riskware.Win32.InfoLeak.cvgqot
0.28.0.59492

nProtect
Trojan/W32.AntiFW.323712
14.04.27.01

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Reason Heuristics
Adware.WebPick.Installer.J
14.8.8.1

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.14426

Sophos
InstallRex
4.98

Vba32 AntiVirus
Downloader.AdLoad
3.12.26.0

VIPRE Antivirus
Installerex/WebPick
28634

File size:
314.5 KB (322,056 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 MiniApp

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\tsuloader.exe

Digital Signature
Authority:
Thawte, Inc.

Valid from:
8/4/2013 8:00:00 PM

Valid to:
8/25/2015 7:59:59 PM

Subject:
CN=Web Pick - Internet Holdings Ltd, O=Web Pick - Internet Holdings Ltd, L=Ramat Hasharon, S=Israel, C=IL

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
3A2CC4F26C8E3CCEC344182538F0AF2D

File PE Metadata
Compilation timestamp:
3/12/2013 4:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:HrFbUzkuvcBYC47l2xWFAS3r/n2KvN48uFPPDZyMnQ:Hr2kuveY3ZF31N4XxZjnQ

Entry address:
0x14DB

Entry point:
55, 8B, EC, 81, EC, 2C, 06, 00, 00, 53, 56, 33, DB, 57, 66, 89, 9D, DC, FB, FF, FF, 89, 5D, F4, 89, 5D, FC, FF, 15, 74, 30, 40, 00, A3, 08, 44, 40, 00, FF, 15, 70, 30, 40, 00, 8B, F8, 8D, 45, EC, 50, FF, 15, 6C, 30, 40, 00, FF, 15, 68, 30, 40, 00, 8B, F0, F7, D6, 33, F7, FF, 15, 64, 30, 40, 00, 33, F0, 8B, 45, F0, 33, 45, EC, 68, 04, 01, 00, 00, 33, F0, 8D, 85, D4, F9, FF, FF, 50, 53, FF, 15, 60, 30, 40, 00, 85, C0, 75, 41, FF, 15, 5C, 30, 40, 00, 83, F8, 78, 75, 1A, 68, A8, 32, 40, 00, E8, 43, FB, FF, FF...
 
[+]

Entropy:
7.9526

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

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

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

TCP (HTTP):
Connects to r1.stylezip.info  (54.186.255.26:80)

TCP (HTTP):
Connects to c1.stylezip.info  (54.186.255.26:80)

 
http://c1.stylezip.info/?step_id=1&installer_id=4434692&publisher_id=434&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=13304076&external_id=0&session_id=26608152&hardware_id=31042844&installer_file_name=TSULoader

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