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setup.exe

OutBrowse

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application setup.exe by OutBrowse has been detected as adware by 18 anti-malware scanners. The program is a setup application that uses the OutBrowse Revenyou installer. The setup routine uses the RevenYou.Com Pay Per Install platform (OutBrowse) which bundles additional software offers inclduing toolbars, extensions, PC utilities as well as other PUPs. The file has been seen being downloaded from dl.app2desktop.com and multiple other hosts.
Publisher:
OutBrowse  (signed and verified)

MD5:
7e20c2efd99a5ae2311af5cce96bd304

SHA-1:
9ce2c8f010f93cb5d9b58010c8ca78ca607f85ea

SHA-256:
b5f61377d93b2adc1014bbfbbf4e2e186b0344f45c5fa6a68e0c27e51e748ae2

Scanner detections:
18 / 68

Status:
Adware

Explanation:
Bundles additional adware offers during download and installation using the OutBrowse installer.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/25/2024 1:59:17 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.OutBrowse
7.1.1

Avira AntiVirus
APPL/Downloader.Gen
7.11.196.118

AVG
OutBrowse
2015.0.3257

Comodo Security
Application.Win32.Outbrowse.G
20398

Dr.Web
Adware.Downware.1664
9.0.1.05190

ESET NOD32
Win32/OutBrowse.G potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/OutBrowse
12/17/2014

F-Prot
W32/Outbrowse.B.gen
v6.4.7.1.166

G Data
Win32.Application.OutBrowse
14.12.24

K7 AntiVirus
Unwanted-Program
13.188.14368

Kaspersky
not-a-virus:Downloader.NSIS.OutBrowse
15.0.0.543

Malwarebytes
PUP.Optional.Outbrowse
v2014.12.17.02

McAfee
Program.Adware-OutBrowse
16.8.708.2

NANO AntiVirus
Trojan.Win32.Generic.cthmwf
0.28.6.64267

Quick Heal
TrojanDownloader.NSIS.OutBrowse.B
12.14.14.00

Reason Heuristics
PUP.Installer.OutBrowse.F
14.12.17.13

Sophos
PUA 'OutBrowse' (of type Adware)
5.09

VIPRE Antivirus
Threat.4784459
35418

File size:
106.6 KB (109,152 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou (using Nullsoft Install System)

Language:
Language Neutral

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

Digital Signature
Signed by:
OutBrowse

Authority:
VeriSign, Inc.

Valid from:
10/23/2013 5:00:00 PM

Valid to:
10/24/2014 4:59:59 PM

Subject:
CN=OutBrowse, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=OutBrowse, L=Ramat Gan, S=Ramat Gan, C=IL

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
56A6FE571611B68C9224798AD62913CA

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:TgXdZt9P6D3XJDCi5Ky/9XO3jR0eWSzUu/0Wp/:Te34EiUQ9OzRgW/cs/

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.6790

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file setup.exe has been seen being distributed by the following 2 URLs.

http://dl.app2desktop.com/.../Get?p=1955&d=4612&l=4403&n=1&productname=allvideoandcodec&d1=14&d2=4&d3=1&d4=6&d5=000004132

http://downloads.downloadster.org/download.php?id=1a96f2b9a4d2368f789860e8f325068b43326aa2&z=8&p=eyJweSI6ImRvIiwicnMiOiJnIiwicnQiOiJkIiwiYyI6InVzIiwibyI6IndpbjciLCJiIjoiY2gzMiIsInVfaWQiOiJkb181MmRiMmE0MTYzODc0OC45MDMzMjU5NC5hZDZlYjE2OWMzZGNkNGM1OGI5ZTZmNzExZjgwMWRlMCIsInBhX2lkIjoiOCIsInN0X2lkIjoiMCIsInNwX2lkIjoiMDAwMC0wNDEzMiIsInRzIjoxMzkwMDk0OTEzLCJrdyI6Im1lZGlhIHN0cmVhbWluZyIsImN1IjoiIiwiY2EiOm51bGx9

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