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downloadsetup.exe

Setup

Natan Risman

This program bundles adware during the download and install process using the InstaleRex pay-per-install app monetizer. The application downloadsetup.exe by Natan Risman has been detected as adware by 21 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:
Premium  (signed by Natan Risman)

Product:
Setup

Description:
Installer

Version:
2012.9.16.1145

MD5:
d5e95a2286a2860c226b3ab622593f68

SHA-1:
7fa04e1d9576025489de022379a6ec758e9edb60

SHA-256:
1ee8141312bd8db3a66e4017c0b7c69e7bb38a7322e85f850fcabdd18c798ef2

Scanner detections:
21 / 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 2:19:26 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.InstallMate
7.1.1

Avira AntiVirus
Adware/InstallMat.C
7.11.138.26

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

AVG
MalSign.Skodna
2015.0.3433

Bkav FE
HW32.CDB
1.3.0.4959

Clam AntiVirus
Win.Adware.Downware-591
0.98/19185

Comodo Security
Application.Win32.Bundledz.C
17963

Dr.Web
Adware.Downware.448
9.0.1.05190

ESET NOD32
Win32/InstallMate potentially unwanted application
7.0.302.0

F-Prot
W32/InstallMate.B
v6.4.6.5.141

IKARUS anti.virus
PUP.InstallRex
t3scan.1.6.1.0

NANO AntiVirus
Riskware.Win32.Downware.cvbqxd
0.28.0.58491

Panda Antivirus
PUP/TSUploader
14.06.25.11

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Reason Heuristics
PUP.Installer.NatanRisman.N
14.8.8.0

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.14623

Sophos
InstallRex
4.98

SUPERAntiSpyware
Trojan.Agent/Gen-InstallMate
10522

Total Defense
Win32/Tnega.aDQSBaD
37.0.10856

Trend Micro House Call
HV_INSTALLREX_CI052D46.RDXN
7.2.176

VIPRE Antivirus
Installerex/WebPick
27576

File size:
296.9 KB (304,056 bytes)

Product version:
1.0

Copyright:
Copyright © 2010 Premium

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

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

Digital Signature
Signed by:
Natan Risman

Authority:
COMODO CA Limited

Valid from:
6/5/2012 9:00:00 PM

Valid to:
6/6/2013 8:59:59 PM

Subject:
CN=Natan Risman, O=Natan Risman, STREET=Gordon 6, L=Tel Aviv, S=Israel, PostalCode=63407, C=IL

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

Serial number:
34640F50A673F31E25EF247830CCA289

File PE Metadata
Compilation timestamp:
8/21/2012 11:07:13 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:l0+sehnP8zOWy66Z6jef4EVZDDdH7Aco/v0tDZH6X82XNErzD6Eso7m9RTf3uT:l0+s2nPeDh6YjI4E3DDtAcomm9EvDhs8

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:
7.9562

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file downloadsetup.exe has been seen being distributed by the following URL.

http://storagenl.info/.../

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=7042438&publisher_id=042&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=21127314&external_id=0&session_id=42254628&hardware_id=49297066&installer_file_name=downloadsetup

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