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:
2012.9.12.1332

MD5:
40cf5cab74fcecf78e410258c3270585

SHA-1:
05b595ce0aa83feeee9e899873be1fce847051e9

SHA-256:
e64ab8c4174e248adfdca38ea9d6d5d505a8044f7d396f64660ec50d35aa189c

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:
4/25/2024 5:15:35 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:
295.9 KB (303,008 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:

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:y0zsehnP8zOWy66Z6jef4EVZDDdHQ2zxjECoZXNOlYlKRuZxIrI+qgQk7OxQz:y0zs2nPeDh6YjI4E3DDNVIMFiEI+qCV

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:
7.9578

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.

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=7042184&publisher_id=042&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=21126552&external_id=0&session_id=42253104&hardware_id=49295288&installer_file_name=downloadsetup

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