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firefox_setup.exe

Firefox

Download Manager

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, “Firefox ” by Download Manager 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 Manager   (signed by Download Manager)

Product:
Firefox

Description:
Firefox

Version:
2.0.5.0

MD5:
2aeb4d8ca9741f4c4e5d893d8575d28a

SHA-1:
894cac15dfc41e75d158be5651b6b42de015368c

SHA-256:
dbab54fda92aa7ab87dc63dba87ad81d99eb536dc33db8e584f4832577eac2b2

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:
2/26/2025 4:55:34 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.4.29.13

File size:
842.4 KB (862,632 bytes)

Product version:
2.0.5.0

Copyright:
(c) Download Manager

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}\downloads\firefox_setup.exe

Digital Signature
Signed by:
Download Manager

Authority:
VeriSign, Inc.

Valid from:
6/7/2013 5:00:00 PM

Valid to:
6/8/2014 4:59:59 PM

Subject:
CN=Download Manager, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Download Manager, L=Vancouver, 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:
428E8B7C1AC548D083F4D3A0C5FDAF4C

File PE Metadata
Compilation timestamp:
3/6/2014 11:15:18 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:M7OkPVpSfAMEbmW3t9oPt2QWfIwV4j8eBhtuKG+YWpafR70fvg92iYttMhmNdvV2:M2AP9a2DIHg+tNG/WpaJ7uvBibqdv/Yz

Entry address:
0x269510

Entry point:
60, BE, 00, 60, 5A, 00, 8D, BE, 00, B0, E5, FF, 57, 83, CD, FF, EB, 10, 90, 90, 90, 90, 90, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, 0B, 75, 28, 8B, 1E, 83, EE, FC, 11, DB, 72, 1F, 48, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, EB, D4, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, EB, 52, 31, C9, 83, E8, 03, 72, 11, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 75, D1, F8, 89...
 
[+]

Entropy:
7.8868

Packer / compiler:
UPX 2.90LZMA

Code size:
784 KB (802,816 bytes)

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

http://www.downloadwizard.com/download_firefox_ca.php

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