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firefox.exe

WorldSetup

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application firefox.exe by WorldSetup has been detected as adware by 14 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:
WorldSetup  (signed and verified)

MD5:
6ce9d88b20900b1add1f411f6baaf5bf

SHA-1:
df7a897b23b9b57754f4df7df06c89b49959348c

SHA-256:
93a25c3c8ba2428e47fa0f9ac6da9d180a6dbd714dc91a3c26a96405425e0b25

Scanner detections:
14 / 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:
4/27/2024 3:29:47 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
Adware/InstallCore.AI
7.11.150.22

AVG
Ransomer
2015.0.3472

Comodo Security
Application.Win32.Installcore.WS
18286

Dr.Web
Trojan.Packed.24524
9.0.1.0137

ESET NOD32
Win32/InstallCore.JE.gen (variant)
8.9811

G Data
Win32.Application.InstallCore
14.5.24

K7 AntiVirus
Unwanted-Program
13.177.12109

Malwarebytes
PUP.Optional.InstallCore
v2014.05.17.02

Reason Heuristics
PUP.WorldSetup.H
14.5.15.4

Sophos
Install Core
4.98

Vba32 AntiVirus
Downware.InstallCore
3.12.26.0

VIPRE Antivirus
Adware.Win32.InstallCore.ba
29294

Zillya! Antivirus
Trojan.Kryptik.Win32.492870
2.0.0.1790

File size:
639.3 KB (654,616 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\firefox.exe

Digital Signature
Signed by:
WorldSetup

Authority:
COMODO CA Limited

Valid from:
1/3/2014 1:00:00 AM

Valid to:
1/4/2015 12:59:59 AM

Subject:
CN=WorldSetup, O=WorldSetup, STREET=Lilienblum 28 St., L=Tel-Aviv, S=Tel-Aviv, PostalCode=6513307, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
6EEF11096F7B5CDC42244636F32F2208

File PE Metadata
Compilation timestamp:
6/20/1992 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:nvpg8UqPO33Fm87Zwrcubbtkm0wrcjSqbdlYGbteIYI+rE7Y:nvm8UaOnM87Zqzbt+vYGbteG+rE7

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, 53, C9, FF, FF, E8, 9A, 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...
 
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Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

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

http://www.download4win.org/de/downloads/.../Firefox.exe

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