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malwarebytes.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 malwarebytes.exe by OutBrowse has been detected as adware by 14 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.
Publisher:
OutBrowse  (signed and verified)

MD5:
def9ec93bc2e64b186c269e39c08bfef

SHA-1:
597b647d7e1316d7c43b66c05256a5088db91a64

SHA-256:
955c36d28dc4523381891d1694a480900ebdbf61094f93bccab9b140401561fa

Scanner detections:
14 / 68

Status:
Adware

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

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
12/25/2024 5:08:00 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
MalSign.OutBrowse
2015.0.3420

Bkav FE
W32.Clod3e7.Trojan
1.3.0.4613

Dr.Web
Adware.Downware.1664
9.0.1.0189

ESET NOD32
Win32/OutBrowse (variant)
8.9190

Fortinet FortiGate
Riskware/NSIS_OutBrowse
7/8/2014

IKARUS anti.virus
not-a-virus:Downloader.NSIS
t3scan.2.2.29

K7 AntiVirus
Unwanted-Program
13.174.10560

Malwarebytes
PUP.Optional.Smart
v2014.07.08.11

McAfee
Artemis!DEF9EC93BC2E
5600.7076

Reason Heuristics
PUP.OutBrowse.M
14.8.7.20

Sophos
Generic PUA PP
4.96

Trend Micro House Call
TROJ_GEN.F47V1124
7.2.189

Vba32 AntiVirus
Downloader.OutBrowse
3.12.24.3

VIPRE Antivirus
OutBrowse
24514

File size:
612 KB (626,728 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

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

Digital Signature
Signed by:
OutBrowse

Authority:
VeriSign, Inc.

Valid from:
10/23/2013 8:00:00 PM

Valid to:
10/24/2014 7:59:59 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 5:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:wIRbOXkJnkWaRg+J7gaMTUGyEvYqTNyYfgiXHHT1V8sY7BYt6c:wIR6XkxkWaiNYAgqTNZgiXHzjY9Yt1

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:
7.9772

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://cdn.app2desktop.com/misc/.../Malwarebytes.exe

http://downloader2.downloadinfo.co/download.php?id=2bc677258aeb60e5bb966745862fb6fe63f38692&z=8&p=eyJweSI6ImRpIiwicnMiOiJnb29nbGUiLCJydCI6InNlYXJjaCIsImMiOiJ1cyIsIm8iOiJ3aW43IiwiYiI6ImNoMzEiLCJ1X2lkIjoiZGlfNTI5M2M4M2UxM2IyZDMuMDYxNzE2NjgiLCJwYV9pZCI6IjgiLCJzdF9pZCI6IjAiLCJzcF9pZCI6IjAwMDAtMDAwMCIsInRzIjoxMzg1NDE2NzY2LCJrdyI6ImZyZWUgdmlydXMgc2NhbnMgYW5kIHJlbW92YWwiLCJjdSI6ImZyZWUgdmlydXMgc2NhbnMgYW5kIHJlbW92YWwiLCJjYSI6bnVsbH0=

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