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:
2013.6.30.1726

MD5:
a4bde161900d336ab246af788f9f0b24

SHA-1:
933da81405fe75207818cff2e7e81e13fefbc40a

SHA-256:
d84d7a844b6133cb499d3e543eb36d6a467fbde8cd10a60fd8168037b63539bb

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:
4/16/2024 1:34:40 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.Generic.603793
924

Agnitum Outpost
Adware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
14.07.26

Avira AntiVirus
ADWARE/InstallRex.Gen
7.11.138.84

avast!
Win32:InstalleRex-Q [PUP]
140617-1

AVG
MalSign.Skodna.Pick
2015.0.3402

Bitdefender
Application.Generic.603793
1.0.20.1035

Bkav FE
HW32.CDB
1.3.0.4959

Clam AntiVirus
Win.Adware.Agent-6811
0.98/19168

Comodo Security
Application.Win32.InstalleRex.KG
17970

Dr.Web
Adware.Downware.1166
9.0.1.05190

Emsisoft Anti-Malware
Trojan.Generic.10433630
8.14.07.26.11

ESET NOD32
Win32/InstalleRex.J potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/InstalleRex
7/26/2014

F-Secure
Application.Generic.603793
11.2014-26-07_7

G Data
Win32.Application.InstalleRex
14.7.24

IKARUS anti.virus
PUP.InstallRex
t3scan.1.6.1.0

K7 AntiVirus
Trojan
13.177.12109

Kaspersky
not-a-virus:AdWare.Win32.Agent
15.0.0.494

Malwarebytes
PUP.Optional.Installex
v2014.07.26.10

McAfee
PUP-FHQ!1E20D0610DB1
5600.7058

MicroWorld eScan
Application.Generic.603793
15.0.0.621

NANO AntiVirus
Riskware.Win32.Agent.creefe
0.28.0.58491

nProtect
Trojan-Clicker/W32.Agent.292640
14.04.24.02

Panda Antivirus
PUP/TSUploader
14.07.26.10

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Quick Heal
Trojan.AntiFW.B5
7.14.14.00

Reason Heuristics
Adware.WebPick.Installer.I
14.8.7.21

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.14724

Sophos
InstallRex
4.98

SUPERAntiSpyware
PUP.InstallRex/Variant
10460

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:
286.8 KB (293,664 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:

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):
6144:1rk26Y0JQBkQRl7174NpNUM+UHs+Kzr6MEmYCByAXuwdvCL+or:1rk263yRl1uqM+gs+KndEuDjK6o

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=8213060&publisher_id=213&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=24639180&external_id=0&session_id=49278360&hardware_id=57491420&installer_file_name=download

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