download.exe

Ivan Kostin

This program bundles adware during the download and install process using the InstaleRex pay-per-install app monetizer. The application download.exe, “Installer for SummerSoft” by Ivan Kostin has been detected as adware by 32 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:
SummerSoft  (signed by Ivan Kostin)

Product:
SummerSoft

Description:
Installer for SummerSoft

Version:
2013.10.10.1735

MD5:
f5e41d925972ac7e42d32e1e0efc68c1

SHA-1:
340ed994ac878cd585af161c632848904208ada0

SHA-256:
60e8895b93c2199746a24b38d3db9763c398183b9de657a864e11fa643130abc

Scanner detections:
32 / 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:
4/23/2024 8:13:41 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Downloader
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2014.09.22

Avira AntiVirus
Adware/InstallRex.O
7.11.173.140

avast!
Win32:InstalleRex-AI [PUP]
141119-1

AVG
Adware Skodna.Bundle.CU
2014.0.4189

Bkav FE
W32.FamVT.AntiFWK.Trojan
1.3.0.4959

Clam AntiVirus
Win.Adware.Installerex-8
0.98/19466

Comodo Security
Application.Win32.InstallRex.O
19584

Dr.Web
Adware.Downware.1541
9.0.1.05190

ESET NOD32
Win32/InstalleRex.K potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/InstalleRex
11/22/2014

F-Prot
W32/InstallRex.B
v6.4.6.5.141

G Data
Win32.Application.InstalleRex
14.11.24

IKARUS anti.virus
PUP.InstallRex
t3scan.1.6.1.0

K7 AntiVirus
Unwanted-Program
13.183.13432

Kaspersky
Trojan.Win32.AntiFW
15.0.0.543

Malwarebytes
PUP.Optional.InstalleRex
v2014.11.22.11

McAfee
PUP-FHQ
5600.6938

NANO AntiVirus
Riskware.Win32.InfoLeak.cwixyc
0.28.2.62151

nProtect
Trojan/W32.AntiFW.308984
14.09.24.01

Panda Antivirus
PUP/TSUploader
14.11.22.11

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Quick Heal
Trojan.AntiFW.A5
11.14.14.00

Reason Heuristics
Adware.WebPick.Installer.I
14.11.22.23

Rising Antivirus
PE:Malware.InstallRex!6.8C1
23.00.65.141120

Sophos
InstallRex
4.98

SUPERAntiSpyware
Adware.InstalleRex/Variant
10221

Trend Micro House Call
TROJ_GEN.R0CBC0PAM14
7.2.326

Trend Micro
TROJ_GEN.R0CBC0PAM14
10.465.22

Vba32 AntiVirus
Downware.TSU
3.12.26.3

VIPRE Antivirus
Threat.14871
33120

Zillya! Antivirus
Downloader.Adload.Win32.16833
2.0.0.1929

File size:
303.2 KB (310,496 bytes)

Product version:
1.0.0.1

Copyright:
Copyright © 2012 SummerSoft

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:
8/25/2013 8:00:00 AM

Valid to:
8/26/2014 7:59:59 AM

Subject:
CN=Ivan Kostin, O=Ivan Kostin, STREET=Pobedy 33/1, L=Kyiv, S=Kyiv, PostalCode=03170, C=UA

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

Serial number:
00EB11D24CE6DDBBF752FE4DC3D683D2BF

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:Frkp9uEo2S1YnQmCX492DkwNP3qpYFqrtZJ9jEvyQzjBR2JYRcK7uYSH:Frk/u6/eIo49PJ9YvBzlM

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:
7.9575

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=14010878&publisher_id=401&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=42032634&external_id=0&session_id=84065268&hardware_id=98076146&installer_file_name=download

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