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TSULoader.exe

First Offer LTD

This is a WebPick installer that bundles (with very minimal user consent) a number of adware browser extensions which inject ads in the browser. The application TSULoader.exe, “Installer for MiniApp” by First Offer has been detected as adware by 8 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 First Offer LTD)

Product:
MiniApp

Description:
Installer for MiniApp

Version:
2014.4.27.1945

MD5:
f5d9de11d5ebbfe54c45136a551ae6ba

SHA-1:
55013755412fe4f7db3e3163916a3fc5d7bd719d

SHA-256:
ee6cba578e909039580100390e5eb118d8503503d32598ea5f05f8dd1ea811a6

Scanner detections:
8 / 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:
4/26/2024 6:28:01 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Installer-AP [PUP]
2014.9-140427

AVG
MalSign.Generic
2015.0.3491

Comodo Security
Application.Win32.InstalleRex.KG
18176

Dr.Web
Adware.Downware.2108
9.0.1.0117

ESET NOD32
Win32/InstalleRex
8.9729

NANO AntiVirus
Riskware.Win32.InfoLeak.cvgqot
0.28.0.59492

Reason Heuristics
Adware.WebPick.Installer.J
14.4.27.18

Sophos
InstallRex
4.98

File size:
316 KB (323,584 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:
First Offer LTD

Authority:
COMODO CA Limited

Valid from:
10/7/2013 8:00:00 PM

Valid to:
10/8/2014 7:59:59 PM

Subject:
CN=First Offer LTD, O=First Offer LTD, STREET=Habarzel 21 Tel Aviv, L=Tel aviv, S=Israel, PostalCode=69710, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
49900242461D96CB7B045BE0A258338E

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:zrFbUzkuvcBYC47l2xWFAS3r/n2KvN48uFPPDZyMpn:zr2kuveY3ZF31N4XxZjh

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/v1209

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

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

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