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firefox_setup.exe

Mozilla Firefox

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_setup.exe 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 and verified)

Product:
Mozilla Firefox

Version:
3.0.0.110

MD5:
360ebf5340a3b279f04c16b8c0b5459e

SHA-1:
cb5a64d405192a27c169df3bded401df3f2ce520

SHA-256:
a4af854df865bc90d7eb6f647af000971e480d8d9398d2aaeaacbe7285f5d523

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:
12/26/2024 12:33:05 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.DownloadAssistant.Bundler (M)
16.2.7.16

File size:
965.3 KB (988,440 bytes)

Product version:
3.0.0.110

Copyright:
(c) Download Assistant

Original file name:
firefox_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_setup.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
6/20/2015 8:00:00 PM

Valid to:
6/20/2016 7:59:59 PM

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

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
68A4319BC2FC7C8CEA600E8D68FFA326

File PE Metadata
Compilation timestamp:
7/22/2015 1:59:23 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:TwFmFRCpq9R+F1QJPXBsl98h4AhOjm+bfwnGBre/+L6Bv5/xC6SqAIZlTvEix7tI:pCrSYjvQGBre/BfCxWMix7a4OL

Entry address:
0x1288

Entry point:
55, 8B, EC, 83, EC, 14, 53, 56, 57, 6A, 00, FF, 15, 08, 20, 49, 00, 8B, F8, 33, D2, 8B, CF, 8B, 5F, 3C, 03, DF, 89, 5D, FC, 0F, B7, 73, 14, 83, C6, 18, 03, F3, 2B, 05, 1C, 10, 40, 00, 89, 45, F0, 1B, D2, 89, 75, EC, F7, D8, 89, 55, F4, 83, D2, 00, F7, DA, 52, 8B, 93, A0, 00, 00, 00, 50, 8B, 46, 0C, 03, 05, 28, 10, 40, 00, 50, FF, B3, A4, 00, 00, 00, E8, C6, FD, FF, FF, 56, FF, 35, 28, 10, 40, 00, 8B, CF, E8, 42, FF, FF, FF, A1, 20, 10, 40, 00, 83, C4, 18, 83, C6, 28, 83, F8, 01, 76, 18, 56, FF, 35, 2C, 10...
 
[+]

Entropy:
7.0493

Developed / compiled with:
Microsoft Visual C++

Code size:
577 KB (590,848 bytes)

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

http://software.install-wiz.com/v2/click/ca075ba8/?d=http://sonicdownloads.com/download/firefox_setup.exe&key=6c6c7148f4acc5516fe57d1d1d537c014b3e5abbf6ae2678b7ab9b3dd35b6359&sid=ffuk3-sncdlds-202548-7793510175-&uid=&affiliate_image=http://sonicdownloads.com/.../firefox-logo.png&product_image=http://sonicdownloads.com/.../firefox-img.png&n=Mozilla Firefox&filename=firefox_setup

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