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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:
dcb059503e713c0e8b23bc48a531fa8a

SHA-1:
970c0db5811602bae620109f5d3976d3156c16bc

SHA-256:
c9effad1f87a5f65769618ffa550621a534f09544505f900e953b9fbf9787fb1

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:
12/25/2024 1:54:55 PM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.TSULoader
14.08.08

Avira AntiVirus
ADWARE/InstallRex.Gen7
7.11.145.108

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
14.0.0.3949

Malwarebytes
PUP.Optional.InstalleRex
v2014.04.28.06

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
Signed by:
Web Pick - Internet Holdings Ltd

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/n2KvN48uFPPDZyMnG:Hr2kuveY3ZF31N4XxZjnG

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.

http://toolkitfreefast.com/v2363

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=4427016&publisher_id=427&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=13281048&external_id=0&session_id=26562096&hardware_id=30989112&installer_file_name=TSULoader

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