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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 36 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:
2013.6.19.1256

MD5:
5819b2aaa08396ba6509d16aad7b1349

SHA-1:
ebe10981dba9040ae6ea6eb1be5f3dfcddfea60f

SHA-256:
5354d903e3d4e30dff11c568fecbba6988539a8e83ca0763a86216512c540d69

Scanner detections:
36 / 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 9:29:22 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.Generic.563392
5895894

Agnitum Outpost
Adware.Agent
7.1.1

AhnLab V3 Security
Adware/Win32.StartPage
14.11.29

Avira AntiVirus
ADWARE/InstallRex.Gen
7.11.140.84

avast!
Win32:Downloader-UZF [PUP]
141119-1

AVG
Adware AdInstaller.P
2014.0.4189

Baidu Antivirus
Adware.Win32.Agent
4.0.3.141129

Bitdefender
Application.Generic.591812
1.0.20.1665

Bkav FE
HW32.CDB
1.3.0.4959

Clam AntiVirus
Win.Adware.Agent-6600
0.98/19246

Comodo Security
Application.Win32.InstalleRex.KG
18022

Dr.Web
Adware.Downware.1166
9.0.1.05190

Emsisoft Anti-Malware
Adware.Generic.563392
9.0.0.4570

ESET NOD32
Win32/InstalleRex.J potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/InstalleRex
11/29/2014

F-Prot
W32/InstallRex.B
v6.4.6.5.141

F-Secure
Application.Generic.591812
11.2014-29-11_7

G Data
Application.Generic.591812
14.11.24

IKARUS anti.virus
PUP.InstallRex
t3scan.1.6.1.0

K7 AntiVirus
Trojan
13.176.11595

Kaspersky
not-a-virus:AdWare.Win32.Agent
15.0.0.543

Malwarebytes
PUP.Optional.Installex
v2014.11.29.03

McAfee
PUP-FHQ!58F5F091CB6A
5600.6932

MicroWorld eScan
Application.Generic.591812
15.0.0.999

NANO AntiVirus
Riskware.Win32.Agent.crfila
0.28.0.58720

nProtect
Trojan.Generic.9473595
14.10.30.01

Panda Antivirus
PUP/TSUploader
14.11.29.03

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Quick Heal
Trojan.AntiFW.B5
11.14.14.00

Reason Heuristics
Adware.WebPick.Installer.P
14.11.29.3

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.141127

Sophos
InstallRex
4.98

SUPERAntiSpyware
PUP.InstallRex/Variant
10209

Vba32 AntiVirus
Downloader.AdLoad
3.12.24.3

VIPRE Antivirus
Installerex/WebPick
27884

Zillya! Antivirus
Dropper.Injector.Win32.56002
2.0.0.1778

File size:
286.5 KB (293,400 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\downloadmanager.exe

Digital Signature
Signed by:
Moshe Caspi

Authority:
COMODO CA Limited

Valid from:
8/2/2012 8:00:00 AM

Valid to:
8/3/2013 7:59:59 AM

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 4:51:45 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:grkq6Y0JQBkQRl7174NpNUM+UHs+FAk6dU+h1xSx684Ys05d7PH8:grkq63yRl1uqM+gs+mkuUEaYb4dL8

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:
7.9549

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.

http://www.storebox1.info/v1160?product_name=Uploaded&product_title=Uploaded&filesize=263192576&installer_file_name=DownloadManager&product_file_name=130607-Kami.part3.rar&product_download_url=http://stor1033.uploaded.net/.../0549e7c5-6a99-4def-b8c4-b51a195e3f4b

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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