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firefox.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.exe by Quick Downloader has been detected as adware by 8 anti-malware scanners. The program is a setup application that uses the Adlogica Quick Downloader 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:
Quick Downloader  (signed and verified)

MD5:
498c01b28b992d619acf35d9c31e98e7

SHA-1:
323600d0831ca08565c91ec7187368dab824e48f

SHA-256:
321cd1764253ae8991737f0faf90dad5b9392d511d4fdd7cfe20a861169d2270

Scanner detections:
8 / 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:
5/14/2024 8:56:57 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.OutBrowse
7.1.1

Avira AntiVirus
APPL/OutBrowse.AA
7.11.162.16

Clam AntiVirus
Win.Adware.Outbrowse-2
0.98/19185

ESET NOD32
Win32/OutBrowse.AA potentially unwanted application
7.0.302.0

NANO AntiVirus
Trojan.Win32.Generic.dbxkzp
0.28.2.60881

Reason Heuristics
PUP.QuickDownloader.H
14.8.7.17

Trend Micro House Call
Suspici.DB6BCC95
7.2.198

VIPRE Antivirus
Threat.4786018
31208

File size:
708 KB (725,008 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Adlogica Quick Downloader (using Nullsoft Install System)

Language:
Language Neutral

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

Digital Signature
Signed by:
Quick Downloader

Authority:
COMODO CA Limited

Valid from:
8/7/2013 8:00:00 PM

Valid to:
8/8/2014 7:59:59 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:
12/5/2009 5:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:5KWxAsP0E9rmuCuvrgNFgU7pxU4rhxJh5KoQVuw0bn5hNqVJ4/bLHxu:5BP3ikQ7fU4jDQDg5qP+5u

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...
 
[+]

Entropy:
7.9472

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.downloaddesktop2.com/DownloadManager/GetALGK4?p=1955&d=3208&l=5187&n=1&productname=Firefox&d1=51921&exeurl=https://download-installer.cdn.mozilla.net/pub/firefox/releases/30.0/win32/en-US/Firefox Setup Stub 30.0.exe&filename=Firefox&tyurl=http://www.postdownload.net/.../redirect.php?id=i5lng7o7cmdj6covlecr071a9a12qppe8gej1f7keg1phs53b3c1-48715f9bc069937e51acb019e8faf639&d=ez-download.com&p=Firefox&pid=3

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