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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 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the Adlogica Quick Downloader 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:
Quick Downloader  (signed and verified)

MD5:
bf0d86cd244b7165453cd7e4924df083

SHA-1:
346da8b8d834e993f479dd813df645f1fe8e9ba2

SHA-256:
abc6a970bf5a5673824473a1f47b60287c3c0f405acc9e2645452831b8c4569e

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:
5/13/2024 6:46:12 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Adlogica.Bundler
16.6.22.9

File size:
584.1 KB (598,088 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\inetcache\ie\{random}\firefox.exe

Digital Signature
Signed by:
Quick Downloader

Authority:
COMODO CA Limited

Valid from:
8/11/2014 5:00:00 PM

Valid to:
8/11/2017 4:59:59 PM

Subject:
CN=Quick Downloader, O=Quick Downloader, STREET="96 Jessie St, 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:
0087CE63C7728E982ECA2980DCA8DDE091

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:jodR2CUdv6Q7uFDSX9kM6nBLEyjfa++IE+kIrCUwcbq3UF66Fk:joWKsuQyLxG++Pqwc2EF8

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:
7.9738

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.downloaddesktop5.com/1419189105/DownloadManager/getalgk4?p=1955&d=18257&l=5187&n=1&exeurl=https://download-installer.cdn.mozilla.net/pub/firefox/releases/33.0/win32/en-US/Firefox Setup Stub 33.0.exe&productname=Firefox&d1=156909&d2=141&filename=Firefox&tyurl=http://www.postdownload.net/.../redirect.php?id=j50tb7blc51bbrpqk73m62s9uq6ge50ff9p5skvavc53jfmlsk21-9f5921e8c622a75da72ecef4164f0f3d&d=downloadzone.org&p=Firefox&pid=3&bex=1&countryid=265

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