download.exe

Rafael Leviev

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 Rafael Leviev has been detected as adware by 37 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 Rafael Leviev)

Product:
StarApp

Description:
Installer for StarApp

Version:
2013.8.6.1937

MD5:
1e3f30577dadd6696f3d4d6b7a814a66

SHA-1:
68094c881e95bcda94f55bc6ced1cd48df3f8d24

SHA-256:
b9c566122b7f8287246e2d563e5eefc76dce0b369cc5a075f7bce4159c324ecf

Scanner detections:
37 / 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:
4/27/2024 3:13:52 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Application.Bundler.InstallRex.2
360

Agnitum Outpost
Adware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2014.11.30

Avira AntiVirus
Adware/Agent.aeph.2
7.11.189.146

avast!
Win32:InstalleRex-U [PUP]
2014.9-160210

AVG
Skodna.Pick
2017.0.2838

Baidu Antivirus
Adware.Win32.Agent
4.0.3.16210

Bitdefender
Application.Generic.678769
1.0.20.205

Bkav FE
W32.FamVT.AntiFWK.Trojan
1.3.0.6379

Clam AntiVirus
Win.Adware.Agent-6586
0.98/19413

Comodo Security
Application.Win32.InstalleRex.KG
20233

Dr.Web
Adware.Downware.1166
9.0.1.041

Emsisoft Anti-Malware
Gen:Variant.Application.Bundler.InstallRex
8.16.02.10.07

ESET NOD32
Win32/InstalleRex.J potentially unwanted application
10.7.0.302.0

Fortinet FortiGate
Riskware/InstalleRex
2/10/2016

F-Prot
W32/InstallRex.B
v6.4.6.5.141

F-Secure
Riskware.Gen:Variant.Application.Bundler
11.2016-10-02_4

G Data
Win32.Application.InstalleRex
16.2.24

IKARUS anti.virus
PUA.InstallRex
t3scan.1.7.5.0

K7 AntiVirus
Unwanted-Program
13.186.14174

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.683

Malwarebytes
PUP.Optional.Installex
v2016.02.10.07

McAfee
PUP-FHQ
5600.6494

MicroWorld eScan
Gen:Variant.Application.Bundler.InstallRex.2
17.0.0.123

NANO AntiVirus
Riskware.Win32.Agent.crfilp
0.28.6.63726

Norman
Gen:Variant.Application.Bundler.InstallRex.2
11.20160210

nProtect
Trojan-Clicker/W32.Agent.300096
14.08.25.01

Panda Antivirus
PUP/TSUploader
16.02.10.08

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Quick Heal
Trojan.AntiFW.B5
2.16.14.00

Reason Heuristics
Adware.WebPick.Installer (M)
16.2.10.7

Rising Antivirus
PE:Malware.Agent!6.25
23.00.65.16208

Sophos
InstallRex
4.98

SUPERAntiSpyware
PUP.InstallRex/Variant
9332

Vba32 AntiVirus
Downware.TSU
3.12.26.3

VIPRE Antivirus
Threat.4150696
40552

Zillya! Antivirus
Trojan.StartPage.Win32.19333
2.0.0.1995

File size:
293.6 KB (300,616 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)

Language:
Language Neutral

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

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
1/29/2013 10:00:00 PM

Valid to:
1/30/2014 9:59:59 PM

Subject:
CN=Rafael Leviev, O=Rafael Leviev, STREET=Shoshan 2, L=Lod, S=Shfela, PostalCode=71456, C=IL

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

Serial number:
008E0D8F39B2E360E15B22563ED8C6879A

File PE Metadata
Compilation timestamp:
3/12/2013 5:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:arkF6Y0JQBkQRl7174NpNUM+UHs+T87bUw4Ms9Cbk8rFK7S6B8ON+FU1nr12Y:arkF63yRl1uqM+gs+VzHp8rF2dN+FUH7

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 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=64640924&publisher_id=464&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=193922772&external_id=0&session_id=387845544&hardware_id=452486468&installer_file_name=download

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