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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 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the installCore 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:
Dnldstr_Aggregator  (signed by Download Expert)

Product:
Web application

Description:
Web application Setup

Version:
6.0.44.32183

MD5:
49f3c8d154bf5db1015e1b7c34fb829d

SHA-1:
a6c44484753100423e9c58bd4ac1dfbaec2f86f4

SHA-256:
150b76c98796d7b80ee40c4f9c3ce45766c5d653a854ebe407fa422856564c19

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:
5/16/2024 4:53:35 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
16.7.16.9

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}\downloads\firefox_setup.exe

Digital Signature
Signed by:
Download Expert

Authority:
COMODO CA Limited

Valid from:
1/9/2015 5:30:00 AM

Valid to:
1/9/2017 5:29:59 AM

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:
6/20/1992 3:52:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:SquCO8cuopOJiUMFc5kS633lnNzowpMgIl9/aIMe2m:SqPpogiUM+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.

http://download.downloadease.net/download/727/.../

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