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FirefoxSetup.exe

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 FirefoxSetup.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:
DownloadAsst_New  (signed by Download Assistant)

Product:
Firefox

Version:
3.0.0.98

MD5:
949663837bef7362c41aef2fea947914

SHA-1:
b7129a69b49b4336191add1df2ab45fa2429b8d1

SHA-256:
f80f96407fd323aaf8bc38f1e5d6e65923d4c6ac02a944e1d636e94dcf633f97

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:
5/21/2024 4:16:50 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.3.27.19

File size:
960.2 KB (983,208 bytes)

Product version:
3.0.0.98

Copyright:
(c) DownloadAsst_New

Original file name:
FirefoxSetup.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}\firefoxsetup.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
2/15/2015 7:00:00 PM

Valid to:
2/16/2016 6:59:59 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:
3784E4CAC60231ED82FD7E8E845E8CE3

File PE Metadata
Compilation timestamp:
5/7/2015 10:38:54 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:j3wydXMAV9urnlYgHPnA+K5sqvMbM/6IMHYQf4ozL:cydXhVslnvnfu/uHYuD/

Entry address:
0x126A

Entry point:
55, 8B, EC, 83, EC, 10, 53, 56, 57, 6A, 00, FF, 15, 08, 10, 49, 00, 8B, F8, 33, D2, 8B, CF, 8B, 5F, 3C, 03, DF, 2B, 05, 1C, 10, 40, 00, 89, 45, F4, 1B, D2, F7, D8, 89, 55, F8, 0F, B7, 73, 14, 83, D2, 00, F7, DA, 89, 75, F0, 52, 8B, 93, A0, 00, 00, 00, 50, 8B, 44, 1E, 24, 03, 05, 28, 10, 40, 00, 50, FF, B3, A4, 00, 00, 00, E8, 88, FD, FF, FF, 8B, 54, 1E, 28, 83, C4, 10, A1, 28, 10, 40, 00, 2B, D0, 83, FA, 01, 76, 0D, 8B, 4C, 1E, 24, 03, C8, 03, CF, E8, F2, FE, FF, FF, A1, 20, 10, 40, 00, 83, C6, 40, 03, F3...
 
[+]

Entropy:
7.0567

Developed / compiled with:
Microsoft Visual C++

Code size:
574.5 KB (588,288 bytes)

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

http://v.evdls.com/v2/click/pn8b7cor/?d=http://software.downloadtree.net/firefox.exe&sid=Firefox-US&uid=3120151&key=cd0715e03d96ce64faf15b8f68d3ae1a406cfd05a90d6cfe6023fa1af373f622&affiliate_image=&product_image=https://s3.amazonaws.com/evdlimages/.../firefox-product.jpg&n=Firefox&filename=FirefoxSetup

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