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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 11 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:
6afb5cc6e5aacc1f83914e1ea9378b7c

SHA-1:
7ee857c6d5c8aa2ed24939f6cab7dace5cc8d8df

SHA-256:
c75c09e74335f721f3df5244858485111781db7f13b2ca4bfee9b7b8df8bfb98

Scanner detections:
11 / 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:
4/16/2024 3:59:36 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
APPL/Downloader.Gen
7.11.147.202

AVG
MalSign.Generic
2015.0.3482

Dr.Web
Adware.Downware.2081
9.0.1.0126

ESET NOD32
Win32/OutBrowse
8.9764

Fortinet FortiGate
Riskware/OutBrowse
5/6/2014

K7 AntiVirus
Unwanted-Program
13.177.11997

Malwarebytes
PUP.Optional.OutBrowse
v2014.05.06.01

NANO AntiVirus
Trojan.Win32.Generic.cthmwf
0.28.0.59608

Reason Heuristics
PUP.OUTBROWSE.H
14.8.7.20

Sophos
OutBrowse Revenyou
4.98

VIPRE Antivirus
Trojan.Win32.Generic
28926

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}\downloads\firefox.exe

Digital Signature
Signed by:
OUTBROWSE

Authority:
COMODO CA Limited

Valid from:
4/6/2014 8:00:00 PM

Valid to:
4/7/2015 7:59:59 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 5:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:YztbtfFcicu9/AGdSHlXEYprdDJ5Qk7I/Oylc8Cnrg7:q79Iu9/9dSHlXECrBJ5r7Ibl7org7

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...
 
[+]

Entropy:
7.9254

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 4 URLs.

http://dl.ez-downlaod.com/DownloadManager/Get?p=1955&d=3208&l=5187&n=1&productname=Firefox&d1=4804&filename=Firefox&tyurl=http://www.postdownload.net/.../redirect.php?id=hbfqa51d1gil4eosgl197g7e08j9vlgr413ugupjuk1b6g4kgvr0-5c23d3cd5715bb8dc9cfa9f7eef94df8&d=ez-download.com&p=Firefox&pid=3

http://download.ez-download.com/download/.../hbfqa51d1gil4eosgl197g7e08j9vlgr413ugupjuk1b6g4kgvr0

http://dl.ez-downlaod.com/DownloadManager/Get?p=1955&d=3208&l=5187&n=1&productname=Firefox&d1=4804&filename=Firefox&tyurl=http://www.postdownload.net/.../redirect.php?id=5k38cig1ps7que8uv1huajjpo585lobbdl25im2inrs1jgeukae1-5c23d3cd5715bb8dc9cfa9f7eef94df8&d=ez-download.com&p=Firefox&pid=3

http://download.ez-download.com/download/.../5k38cig1ps7que8uv1huajjpo585lobbdl25im2inrs1jgeukae1

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