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firefox.exe

Mari Mara

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 Mari Mara has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the OutBrowse Revenyou installer. 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:
Mari Mara  (signed and verified)

MD5:
82c791bd957558fedfe76dea437256ce

SHA-1:
d8c9054c9ad007aabea8611c8ba1a8d182845453

SHA-256:
27877a807409505745ad2ee70f9b13b965204cf1a959781c049e442939cb79c9

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

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:
12/26/2024 4:13:00 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.MariMara.Bundler (M)
16.5.18.12

File size:
579.1 KB (592,992 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\firefox.exe

Digital Signature
Signed by:
Mari Mara

Authority:
GlobalSign nv-sa

Valid from:
11/11/2014 10:10:16 AM

Valid to:
11/12/2015 10:10:16 AM

Subject:
CN=Mari Mara, O=Mari Mara, L=Dublin, C=IE

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
112167C220B9C5568C1F2BDF4D04BEE1E24C

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):
12288:Hy5mNmT2b+d8ji5og0i0+EaTS3nO2+bpjgCnHU9aON0J:Hyv2be8jM70ibEa23O2EjVn03O

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://get.down1012.org/1420154677/get5?p=15593&d=21343&l=20431&n=1&productname=Setup&exeurl=https://download-installer.cdn.mozilla.net/pub/firefox/releases/30.0/win32/.../Firefox Setup 30.0.exe&dynamicname=Firefox&filename=Firefox

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