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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. 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:
Mari Mara  (signed and verified)

MD5:
1ddcb747e89021e3955fd7d784af5af7

SHA-1:
e8bb576dd1bc7eb5dfe9cd445db9c33a273c76f2

SHA-256:
8b83474ee0ecd8624114f3c68f273cd1f51727eb7f29f7d36b3c3ed1f1c1cda4

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 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:
5/3/2024 7:14:49 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.MariMara.Bundler (M)
16.2.15.11

File size:
582.1 KB (596,056 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:Kq985OrZZVwuY73hyXAah8rEWjELfw9m8zB/MUjViKxPUkagAOqo1HJlHLWpb:Kq985OrPVcxyXVKQ2MsViAcxvQRLWl

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/1419504406/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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