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firefox_setup.exe

Quick Downloader

The Adlogica setup manager, an installer that bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The application firefox_setup.exe by Quick Downloader has been detected as adware by 6 anti-malware scanners. The program is a setup application that uses the Adlogica Quick Downloader installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. 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:
Quick Downloader  (signed and verified)

MD5:
4f75c206f5fff8ea36aeb38ffb8c8a3e

SHA-1:
7b05464f5ba2667ec2e297c0de92180c78bc1d3c

SHA-256:
e9278b15157eb5c95dd49f030f4135905716c36e3bd19a2d37b7763db2248566

Scanner detections:
6 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

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:
4/25/2024 7:41:57 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:OutBrowse-CH [PUP]
160108-0

Dr.Web
Adware.InstallCore.133
9.0.1.05190

ESET NOD32
Win32/InstallCore.DP potentially unwanted application
7.0.302.0

Microsoft Security Essentials
Threat.Undefined
1.213.2160.0

Reason Heuristics
PUP.Adlogica.QuickDownloader.Bundler (M)
16.1.13.16

Sophos
PUA 'Install Core'
5.22

File size:
663.7 KB (679,648 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Adlogica Quick Downloader (using Inno Setup)

Common path:
C:\Documents and Settings\{user}\My documents\downloads\firefox_setup.exe

Digital Signature
Signed by:
Quick Downloader

Authority:
COMODO CA Limited

Valid from:
8/8/2013 12:00:00 AM

Valid to:
8/8/2014 11:59:59 PM

Subject:
CN=Quick Downloader, O=Quick Downloader, STREET=96 Jessie st, STREET=4th floor, L=San Francisco, S=CA, PostalCode=94105, C=US

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00886E74060345A7D9DD833C2ADF305E49

File PE Metadata
Compilation timestamp:
6/19/1992 5:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:K9HMJfsGXWyTzQD6Fn54ulPEoFlVQ3ov/4/ZMYtZZx0R3nz+eQ53yBvVtoXq:K9HMJfsMWqzQM5XPEoLq3ov/kZ/ZS3zf

Entry address:
0x98CC

Entry point:
55, 8B, EC, 83, C4, CC, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, FA, 97, FF, FF, E8, 01, AA, FF, FF, E8, 2C, CC, FF, FF, E8, 73, CC, FF, FF, E8, 0A, F3, FF, FF, E8, 71, F4, FF, FF, 33, C0, 55, 68, 76, 9F, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 2C, 9F, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, B0, 40, 00, E8, 9B, FE, FF, FF, E8, 26, FA, FF, FF, 8D, 55, F0, 33, C0, E8, E0, D0, FF, FF, 8B, 55, F0, B8, D8, BD, 40, 00, E8, AB, 98, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, D8, BD, 40, 00, B2, 01, B8...
 
[+]

Entropy:
7.8236

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
36 KB (36,864 bytes)

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

http://downloader.ez-download.com/download.php?id=0b9477df1fb5c88fc05fdd1ce0dbae3f33d63c40B&z=0&p=eyJweSI6ImV6IiwicnMiOiJiaW5nIiwicnQiOiJzZWFyY2giLCJjIjoidXMiLCJvIjoid2lueHAiLCJiIjoiY2gzMCIsInVfaWQiOiJlel81MjU0ODkwZGU0MmY3MC4wODk0ODA2MiIsInBhX2lkIjoiMCIsInN0X2lkIjoiMCIsInNwX2lkIjoiMDAwMS0wMDAwIiwidHMiOjEzODEyNzE4MjIsImt3IjoiZmlyZWZveCBkb3dubG9hZCIsImN1IjoiZmlyZWZveCBkb3dubG9hZCIsImNhIjpudWxsfQ==

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