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firefox_setup.exe

Optimum Installer

This adware bundler is distributed through Adknowledge's advertising supported software managers. The application firefox_setup.exe, “Firefox Setup ” by Optimum Installer 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 Adknowledge Fusion 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:
OptimumInstaller  (signed by Optimum Installer)

Product:
OptimumInstaller

Description:
Firefox Setup

Version:
2.0.7

MD5:
c18c4990f220340f45f7a856e70a7dc9

SHA-1:
7e38e20f729a9e53aab08510fd764dca3d8a3641

SHA-256:
d8f4bda2392bff1239ee769a2cd543a7b5cebbce51d8611ff4533af1c792e12a

Scanner detections:
1 / 68

Status:
Adware

Explanation:
This installer bundles various adware prorgams that may include toolbars and web browser advertising injectors/extensions.

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:
4/26/2024 6:12:49 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Adknowledge.OptimumI.Bundler (M)
16.6.27.7

File size:
652.6 KB (668,256 bytes)

Product version:
2.0.7

Original file name:
Setup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Adknowledge Fusion

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\firefox_setup.exe

Digital Signature
Signed by:
Optimum Installer

Authority:
VeriSign, Inc.

Valid from:
11/7/2011 7:00:00 PM

Valid to:
11/7/2012 6:59:59 PM

Subject:
CN=Optimum Installer, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Optimum Installer, L=Kansas City, S=Missouri, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
0809956535A889F9931BDEF10FF6814A

File PE Metadata
Compilation timestamp:
8/1/2012 1:05:16 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:jxfDgKX67CwIz1IZOYo4p7JYgcoI20DpBz4aKo/zUfpfsHfLdoopmH:jxMKsCwIz1IZOYo4RJYgcoxWSaKo/Es0

Entry address:
0x58413

Entry point:
E8, 2F, F1, 00, 00, E9, 78, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 10, 8B, 4D, 08, 53, 8B, 5D, 0C, 56, 57, 33, FF, 89, 4D, F8, 89, 5D, FC, 39, 7D, 10, 74, 21, 39, 7D, 14, 74, 1C, 3B, CF, 75, 1F, E8, 35, 0B, 00, 00, 57, 57, 57, 57, C7, 00, 16, 00, 00, 00, 57, E8, 09, D2, FF, FF, 83, C4, 14, 33, C0, 5F, 5E, 5B, C9, C3, 8B, 75, 18, 3B, F7, 74, 0D, 83, C8, FF, 33, D2, F7, 75, 10, 39, 45, 14, 76, 21, 83, FB, FF, 74, 0B, 53, 57, 51, E8, BC, CA, FF, FF, 83, C4, 0C, 3B, F7, 74, B9, 83, C8, FF, 33, D2, F7, 75, 10...
 
[+]

Entropy:
6.4675

Code size:
475 KB (486,400 bytes)

The file firefox_setup.exe has been seen being distributed by the following URL.

http://install.optimuminstaller.com/o/.../Firefox_Setup.exe

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