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firefox_install.exe

Firefox 2014: Foxstart Edition

Download Assistant

This is part of the Air Installer, a download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application firefox_install.exe, “Firefox 2014: Foxstart Edition ” by Download Assistant 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 AirInstaller Download Manager 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:
Download Assistant   (signed by Download Assistant)

Product:
Firefox 2014: Foxstart Edition

Description:
Firefox 2014: Foxstart Edition

Version:
3.0.0.53

MD5:
5f010c444eff02de66a9b7c8a82a7ab1

SHA-1:
25218b2e6748e6df877a4ac532c5e0968caade9c

SHA-256:
1c8cea48997d256df260ccdd1c3576a1e92694ec61e24bfe7b1fb3bfc234ba2c

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:
11/15/2024 10:27:56 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.DownloadAssistant.Bundler (M)
16.3.7.8

File size:
833.4 KB (853,368 bytes)

Product version:
3.0.0.53

Copyright:
(c) Download Assistant

Original file name:
setup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\firefox_install.exe

Digital Signature
Signed by:
Download Assistant

Authority:
VeriSign, Inc.

Valid from:
8/12/2014 8:00:00 PM

Valid to:
8/12/2016 7:59:59 PM

Subject:
CN=Download Assistant, O=Download Assistant, L=Victoria, S=British Columbia, C=CA

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:
6BC405E8AC962C676F54816BCC4D4311

File PE Metadata
Compilation timestamp:
11/17/2014 5:00:59 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:mt1IVE7xT7mso4jg8ShGoa43cipEtD9af:U1uS+4jgXc43cEM0

Entry address:
0x4C712

Entry point:
E8, 4E, 1A, 01, 00, E9, 89, FE, FF, FF, CC, CC, CC, CC, 8B, 54, 24, 0C, 8B, 4C, 24, 04, 85, D2, 74, 69, 33, C0, 8A, 44, 24, 08, 84, C0, 75, 16, 81, FA, 80, 00, 00, 00, 72, 0E, 83, 3D, 40, 3E, 4A, 00, 00, 74, 05, E9, B4, 1A, 01, 00, 57, 8B, F9, 83, FA, 04, 72, 31, F7, D9, 83, E1, 03, 74, 0C, 2B, D1, 88, 07, 83, C7, 01, 83, E9, 01, 75, F6, 8B, C8, C1, E0, 08, 03, C1, 8B, C8, C1, E0, 10, 03, C1, 8B, CA, 83, E2, 03, C1, E9, 02, 74, 06, F3, AB, 85, D2, 74, 0A, 88, 07, 83, C7, 01, 83, EA, 01, 75, F6, 8B, 44, 24...
 
[+]

Entropy:
7.0731

Code size:
466.5 KB (477,696 bytes)

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

http://files.free-browser.co/v2/click/fxbuhtsx/?d=http://au.free-browser.co/downloads/.../firefoxinstall_en.exe&key=2883b40ae4a6ca1fbfa4f650d7a49fbf02592bdc238a9ed9f468a0aa5a044555&sid=mozilla - 1&uid=0&affiliate_image=&product_image=http://au.free-browser.co/graphics/.../product_image_new.png&n=Firefox 2014: Foxstart Edition&filename=firefox_install

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