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icreinstall_firefox.exe

WorldSetup

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_firefox.exe by WorldSetup has been detected as adware by 16 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:
bd1dd7d1269312c81257373d663aa9f7

SHA-1:
d06948ab26df34de30b0a819deb2949cc1f686c5

SHA-256:
bda5e6ecdf3aefc25fdc74fa62181c62a213362651016f8d18519330d2a34b03

Scanner detections:
16 / 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:
4/19/2024 3:12:48 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.141.94

AVG
MalSign.Generic
2015.0.3487

Comodo Security
Application.Win32.Installcore.WS
18052

Dr.Web
Trojan.Packed.24524
9.0.1.0122

ESET NOD32
Win32/InstallCore.JE.gen (variant)
8.9639

Fortinet FortiGate
Riskware/InstallCore_JE
5/2/2014

G Data
Win32.Application.InstallCore
14.5.24

K7 AntiVirus
Unwanted-Program
13.176.11663

McAfee
Artemis!BD1DD7D12693
5600.7143

Qihoo 360 Security
HEUR/Malware.QVM20.Gen
1.0.0.1015

Reason Heuristics
PUP.WorldSetup.T
14.5.2.11

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.14430

Sophos
Install Core
4.98

Trend Micro House Call
TROJ_GEN.F47V0304
7.2.122

Vba32 AntiVirus
Downware.InstallCore
3.12.26.0

VIPRE Antivirus
Trojan.Win32.Generic
28044

File size:
642.5 KB (657,896 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\appdata\local\temp\icreinstall_firefox.exe

Digital Signature
Signed by:
WorldSetup

Authority:
COMODO CA Limited

Valid from:
1/3/2014 8:00:00 AM

Valid to:
1/4/2015 7:59:59 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 6:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:wuvpgduv3KK/snEig16RAR7x0R62jdMQATLjc66LqK:wuvmduvaK8BuR7WRDwr

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...
 
[+]

Entropy:
7.8236

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

Code size:
37 KB (37,888 bytes)

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

http://cdnus.wawosodadol.com/app/Udownloadsoft/.../Firefox.exe

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to os.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdnus.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdneu.webfilescdn.com  (65.254.40.36:80)

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