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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:
8916acf7fdef73de0973f649779b9a22

SHA-1:
75a8d0102008bf2377575a1800f0d0f9aecf5f75

SHA-256:
7460a2401f50b6321d36cb8616ded349a7496b5ad9d8757110b0ff89b2cebfab

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:
4/19/2024 9:40:39 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
APPL/Downloader.Gen
7.11.150.70

AVG
Generic
2015.0.3471

Dr.Web
Adware.Downware.2081
9.0.1.0138

ESET NOD32
Win32/OutBrowse
8.9816

Fortinet FortiGate
Riskware/OutBrowse
5/18/2014

K7 AntiVirus
Unwanted-Program
13.177.12109

Malwarebytes
PUP.Optional.OutBrowse
v2014.05.18.11

NANO AntiVirus
Trojan.Win32.Generic.cthmwf
0.28.0.59911

Reason Heuristics
PUP.OUTBROWSE.H
14.8.7.20

Sophos
OutBrowse Revenyou
4.98

VIPRE Antivirus
Trojan.Win32.Generic
29342

File size:
968.7 KB (991,984 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):
24576:62tbtfFcicu9/AGdSHlXEYprdDJ5Qk7I/Oylc8Cnr1G:B79Iu9/9dSHlXECrBJ5r7Ibl7or4

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://dl.ez-downlaod.com/DownloadManager/Get?p=1955&d=3208&l=5187&n=1&productname=Firefox&d1=4889&filename=Firefox&tyurl=http://www.postdownload.net/.../redirect.php?id=h6hrjcsfaoavh478dvdbca7vk9fgg4d7umgasvfala09p14dfqj0-249dbac80f5e41d1b6ef902dae9c070a&d=ez-download.com&p=Firefox&pid=3

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