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firefox.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 firefox.exe by OUTBROWSE has been detected as adware by 17 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. With this installer, users are expecting to download the free Mozilla Firefox web browser but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Publisher:
OUTBROWSE  (signed and verified)

MD5:
ec08b18bdf671ee67865fca1a1097271

SHA-1:
d96e35370f3782c8fdae1c09fc128ac9ae82a533

SHA-256:
97bf3097c6374804cb2927845995b91cb0d6a74d6e578f5f88b363744238587a

Scanner detections:
17 / 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:
4/26/2024 9:05:29 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.OutBrowse
7.1.1

AhnLab V3 Security
PUP/Win32.OutBrowse
2014.11.15

Avira AntiVirus
APPL/OutBrowse.lwasp
7.11.185.228

AVG
Generic
2015.0.3290

Dr.Web
Adware.Downware.2081
9.0.1.05190

ESET NOD32
Win32/OutBrowse.G potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/OutBrowse
11/14/2014

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

G Data
Win32.Application.Outbrowse
14.11.24

K7 AntiVirus
Unwanted-Program
13.185.14021

Kaspersky
not-a-virus:AdWare.Win32.OutBrowse
15.0.0.494

Malwarebytes
PUP.Optional.OutBrowse
v2014.11.14.06

McAfee
Adware-OutBrowse
5600.6946

NANO AntiVirus
Trojan.Win32.Generic.cthmwf
0.28.6.63362

Reason Heuristics
PUP.OUTBROWSE.H
14.11.14.17

Sophos
OutBrowse Revenyou
4.98

VIPRE Antivirus
Threat.4150696
34232

File size:
968.4 KB (991,632 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

Common path:
C:\users\{user}\Musica\firefox.exe

Digital Signature
Signed by:
OUTBROWSE

Authority:
COMODO CA Limited

Valid from:
4/6/2014 9:00:00 PM

Valid to:
4/7/2015 8:59:59 PM

Subject:
CN=OUTBROWSE, O=OUTBROWSE, STREET=Bialik Number: 143, L=Ramat Gan, S=Israel, PostalCode=5252337, C=IL

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

Serial number:
00A5F03C3A375C11FD6C1C160EE8BFF923

File PE Metadata
Compilation timestamp:
12/5/2009 8:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:S7tbtfFcicu9/AGdSHlXEYprdDJ5Qk7I/Oylc8Cnrg7:A79Iu9/9dSHlXECrBJ5r7Ibl7org7

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...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file firefox.exe has been seen being distributed by the following URL.

http://download.ez-download.com/download/.../0urllvmao4oferrh11p71rbvmlmgd7b2smpee820ckmiv0gq78s1

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