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download.exe

Lior Sela

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 download.exe, “Installer for StarApp” by Lior Sela has been detected as adware by 34 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:
StarApp  (signed by Lior Sela)

Product:
StarApp

Description:
Installer for StarApp

Version:
2013.6.6.1811

MD5:
1e20d0610db12dc9cb7473805c39437e

SHA-1:
03d4b0568601738fcd3f722956895b97983de851

SHA-256:
341bf0f964aff27acd491c1072b27d8ba506da6da486b43ff0ff5e34fac1aba0

Scanner detections:
34 / 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:
4/25/2024 6:31:05 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.Generic.603793
1016

Agnitum Outpost
Adware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
14.04.24

Avira AntiVirus
ADWARE/InstallRex.Gen
7.11.138.84

avast!
Win32:InstalleRex-Q [PUP]
2014.9-140424

AVG
MalSign.Skodna.Pick
2015.0.3494

Bitdefender
Application.Generic.603793
1.0.20.570

Bkav FE
HW32.CDB
1.3.0.4959

Clam AntiVirus
Win.Adware.Agent-7273
0.98/19246

Comodo Security
Application.Win32.InstalleRex.KG
17970

Dr.Web
Adware.Downware.1166
9.0.1.0114

Emsisoft Anti-Malware
Trojan.Generic.10433630
8.14.08.07.09

ESET NOD32
Win32/InstalleRex
8.9574

Fortinet FortiGate
Riskware/InstalleRex
4/24/2014

F-Secure
Application.Generic.603793
11.2014-24-04_5

G Data
Win32.Application.InstalleRex
14.4.24

IKARUS anti.virus
PUP.InstallRex
t3scan.1.6.1.0

K7 AntiVirus
Trojan
13.177.12109

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.3967

Malwarebytes
PUP.Optional.Installex
v2014.04.24.12

McAfee
PUP-FHQ!1E20D0610DB1
5600.7150

MicroWorld eScan
Application.Generic.603793
15.0.0.342

NANO AntiVirus
Riskware.Win32.Agent.creefe
0.28.0.58491

nProtect
Trojan-Clicker/W32.Agent.292640
14.04.24.02

Panda Antivirus
PUP/TSUploader
14.04.24.12

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Quick Heal
Trojan.AntiFW.B5
8.14.14.00

Reason Heuristics
Adware.WebPick.Installer.I
14.8.7.21

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.14422

Sophos
InstallRex
4.98

SUPERAntiSpyware
PUP.InstallRex/Variant
10646

Vba32 AntiVirus
Downloader.AdLoad
3.12.24.3

VIPRE Antivirus
Installerex/WebPick
27622

Zillya! Antivirus
Adware.Agent.Win32.8668
2.0.0.1785

File size:
285.8 KB (292,640 bytes)

Product version:
1.0.0.1

Copyright:
Copyright © 2012 StarApp

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

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

Digital Signature
Signed by:
Lior Sela

Authority:
COMODO CA Limited

Valid from:
1/22/2013 1:00:00 AM

Valid to:
1/23/2014 12:59:59 AM

Subject:
CN=Lior Sela, O=Lior Sela, STREET=Moshe Sharet 46, L=Beer Sheva, S=Beer Sheva, PostalCode=84786, C=IL

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

Serial number:
00D39C56B89258E40E737B2AEDA8D3D3E5

File PE Metadata
Compilation timestamp:
3/12/2013 9:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:LrkZ6Y0JQBkQRl7174NpNUM+UHs+OJXz/+7SKeqo9RfKP8QnGDYG:LrkZ63yRl1uqM+gs+Opz/TKeHw8F

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...
 
[+]

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file download.exe has been seen being distributed by the following 2 URLs.

http://greatfilesdatay.asia/.../

http://greatfilesdatay.asia/v722

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=4306128&publisher_id=306&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=12918384&external_id=0&session_id=25836768&hardware_id=30142896&installer_file_name=download

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