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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 7 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 installer is marketed through download protals and search ads as the free Mozilla Firefox web browser but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
OUTBROWSE  (signed and verified)

MD5:
8f1c8a6e03f16f4fd7dd1d12d2ffe532

SHA-1:
ad538faea47cbf5fb17d5cb28ef779f202381a2a

SHA-256:
c8620059237e40ab59fc2a07e28e55e6b0b851e71d5134999dd13b22876aa461

Scanner detections:
7 / 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:
4/24/2024 6:59:31 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
MalSign.Generic
2015.0.3504

Dr.Web
Adware.Downware.2081
9.0.1.0104

ESET NOD32
Win32/OutBrowse
8.9675

Malwarebytes
PUP.Optional.OutBrowse
v2014.04.14.02

NANO AntiVirus
Trojan.Win32.Generic.cthmwf
0.28.0.59048

Qihoo 360 Security
Malware.QVM06.Gen
1.0.0.1015

Reason Heuristics
PUP.OUTBROWSE.H
14.8.7.20

File size:
970.4 KB (993,704 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

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

Digital Signature
Signed by:
OUTBROWSE

Authority:
COMODO CA Limited

Valid from:
4/7/2014 2:00:00 AM

Valid to:
4/8/2015 1:59:59 AM

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 11:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:yp/5K0vqxgYznk68rlyJQy0jjSQfEKLKrEewtkPbgwVDTZmxAT7:i5rvyk68Eay0/SQff2rEewtkPbVVvZi0

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 2 URLs.

http://dl.ez-downlaod.com/.../Get?p=1955&d=3208&l=5187&n=1&productname=Firefox&d1=4746&filename=Firefox

http://download.ez-download.com/download/.../29svr0ro39a8eaekcc6f44fpa0bdvjojerldfsnidc61oaj2f4t0

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