downloadmanager.exe

Moshe Caspi

This program bundles adware during the download and install process using the InstaleRex pay-per-install app monetizer. The application downloadmanager.exe, “Installer for StarApp” by Moshe Caspi 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 Moshe Caspi)

Product:
StarApp

Description:
Installer for StarApp

Version:
2013.6.13.1400

MD5:
d909cde436d328877b5f6fa1ae806b1b

SHA-1:
191129ae16bec32605197fdc4238286e7dd7e842

SHA-256:
60d2d792c5444ac943c7da119bc9e7ec15445cb30f7d7153e88fc44cc3a408c3

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:
4/19/2024 9:50:24 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Application.Bundler.InstallRex.2
369

Agnitum Outpost
Adware.Agent
7.1.1

AhnLab V3 Security
Adware/Win32.StartPage
16.02.01

Avira AntiVirus
ADWARE/InstallRex.Gen
7.11.140.84

avast!
Win32:Downloader-UZF [PUP]
2014.9-160201

AVG
Adware AdInstaller.P
2017.0.2847

Baidu Antivirus
Adware.Win32.Agent
4.0.3.1621

Bitdefender
Application.Generic.591812
1.0.20.160

Bkav FE
HW32.CDB
1.3.0.4959

Clam AntiVirus
Win.Adware.Agent-6811
0.98/20309

Comodo Security
Application.Win32.InstalleRex.KG
18022

Dr.Web
Adware.Downware.1166
9.0.1.032

Emsisoft Anti-Malware
Gen:Variant.Application.Bundler.InstallRex
8.16.02.01.04

ESET NOD32
Win32/InstalleRex.J potentially unwanted application
10.7.0.302.0

Fortinet FortiGate
Riskware/InstalleRex
2/1/2016

F-Prot
W32/InstallRex.B
v6.4.6.5.141

F-Secure
Riskware.Gen:Variant.Application.Bundler
11.2016-01-02_2

G Data
Application.Generic.591812
16.2.24

IKARUS anti.virus
PUP.InstallRex
t3scan.1.6.1.0

K7 AntiVirus
Trojan
13.176.11595

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.729

Malwarebytes
PUP.Optional.Installex
v2016.02.01.04

McAfee
Program.PUP-FHQ
5600.6503

MicroWorld eScan
Application.Generic.591812
17.0.0.96

NANO AntiVirus
Riskware.Win32.Agent.crfila
0.28.0.58720

Norman
Adware.Generic.573942
11.20160201

nProtect
Trojan.Generic.9473595
14.10.30.01

Panda Antivirus
PUP/TSUploader
16.02.01.04

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)
16.2.1.4

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.16130

Sophos
PUA 'InstallRex'
5.12

SUPERAntiSpyware
PUP.InstallRex/Variant
9351

Vba32 AntiVirus
Downloader.AdLoad
3.12.24.3

VIPRE Antivirus
Threat.14871
39486

Zillya! Antivirus
Dropper.Injector.Win32.56002
2.0.0.1778

File size:
285.6 KB (292,424 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\downloadmanager.exe

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
8/1/2012 9:00:00 PM

Valid to:
8/2/2013 8:59:59 PM

Subject:
CN=Moshe Caspi, O=Moshe Caspi, STREET=Hashuk 39, L=Tel Aviv, S=Israel, PostalCode=66067, C=IL

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

Serial number:
00B1B859272556EC39AF8F0E4A626C2ADC

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:DrkG6Y0JQBkQRl7174NpNUM+UHs+l96AzqrbuMEdFx7507KAFG9StKWpn:DrkG63yRl1uqM+gs+i6ubuhdL2pGiKY

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 downloadmanager.exe has been seen being distributed by the following URL.

The executing file has been seen to make the following network communication in live environments.

TCP (HTTP):
Connects to r1.stylezip.info  (54.186.255.26:80)

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