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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 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the OutBrowse Revenyou installer. The file has been seen being downloaded from ads.adk2.com.
Publisher:
OutBrowse  (signed and verified)

MD5:
48f5fc75920ef1423852e629e5aa9c58

SHA-1:
5b7e5c1f4de40b35a1399b9fbf91562f8712bb91

SHA-256:
a700cb0544ec98f35ced0ca7b2728c16fa6b73b90eec6c74c1e8966e32d9b0fe

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

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:
1/24/2025 5:22:48 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.Bundler (M)
16.7.4.10

File size:
108.2 KB (110,768 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:
10/24/2013 2:00:00 AM

Valid to:
10/25/2014 1:59:59 AM

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 11:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:fgXdZt9P6D3XJmCS75Ky/9XO3jR0eWSzUu/0WgL:fe34VS7UQ9OzRgW/cP

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:
7.6854

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 URL.

http://ads.adk2.com/event/click/0/KobuER_WdE084TcZn2vdvpW7yWjC5kXs_O6Eu_Q1w6btgtgD1tew5R55SIFkhsoDapeK2-mGYMoXapJkYeNJI5UwoLhInfX9qOtanajRk6ORdEXnNitUja5IPNnXeOPGenVDud6GT5ElgFxVxSlUOVmGG29ltsZVtokfOlYVTdo1QW53l2bhMl13Hb5r4UzDZyR4yLwnziC2e28_-kGZ55WFzW2ZBfqigGLYmOWKLguTx6wtE_UB3HzlnJ2ytlLonlGbOUeKBqye-wVBrhkLamOwHmaTkcksWHHFa9hTYgqf0cJ4mgH_L-O3E1Y3eRPnCW1W0i7Bz1xvR4GPxRCfgHd-3VmgDZvWerDkGYtZKLLubE8Yq4WLU4D3sSqTXvTOSHady9jy-ojh/.../

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