firefox_setup.exe

Web application

Download Expert

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application firefox_setup.exe, “Web application Setup ” by Download Expert has been detected as adware by 17 anti-malware scanners. The program is a setup application that uses the installCore installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. 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:
Dnldstr_Aggregator  (signed by Download Expert)

Product:
Web application

Description:
Web application Setup

Version:
6.0.44.32183

MD5:
f614dc275cc39f2ba026a043c166ae2e

SHA-1:
e8fd548bc8748c29947b2a5517858f09bf27296a

SHA-256:
4e7263e6c121b4924f82a44028f9273ea67f49b8107a9c0977b71f8ed5a4a321

Scanner detections:
17 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

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:
5/19/2024 9:02:41 PM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.InstallCore
2015.02.16

Avira AntiVirus
7.11.202.118

avast!
Malware-gen
2014.9-160118

AVG
Generic
2017.0.2861

Baidu Antivirus
Adware.Win32.InstallCore
4.0.3.16118

Bkav FE
W32.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Trojan.Installcore-423
0.98/20330

Comodo Security
Application.Win32.InstallCore.DSW
20975

Dr.Web
Trojan.InstallCore.50
9.0.1.018

ESET NOD32
Win32/InstallCore.UZ potentially unwanted application
10.7.0.302.0

K7 AntiVirus
Trojan
13.193.14880

Malwarebytes
PUP.Optional.DownloadExpert
v2016.01.18.10

NANO AntiVirus
Riskware.Win32.InstallCore.djeemp
0.30.0.64448

Reason Heuristics
PUP.installCore.DownloadExpert.Installer (M)
16.1.18.10

Total Defense
Win32/Tnega.OZTQMTC
37.0.11465

Vba32 AntiVirus
Malware-Cryptor.InstallCore.gen
3.12.26.4

VIPRE Antivirus
Threat.4150696
36694

File size:
779.6 KB (798,280 bytes)

Product version:
1.2

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

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

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
1/8/2015 6:00:00 PM

Valid to:
1/8/2017 5:59:59 PM

Subject:
CN=Download Expert, O=Download Expert, STREET="1732 1st Ave #26525", L=New York, S=NY, PostalCode=10128, C=US

Issuer:
CN=COMODO RSA Code Signing CA, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
7C1978BE5B6B2A725229D28FC08FA2AC

File PE Metadata
Compilation timestamp:
6/19/1992 5:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:KquCO8cuopOJiUMFc5kS633lnNzowpMgIl9/aIMe2m:KqPpogiUM+5kS631Swj4N2m

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.8865

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

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

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