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firefox_setup.exe

Generic

Download Stream

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, “Generic Setup ” by Download Stream has been detected as adware by 6 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:
Software internet   (signed by Download Stream)

Product:
Generic

Description:
Generic Setup

Version:
1.3.2.3

MD5:
97f2b9c127452af4510c73208c15fbe6

SHA-1:
570a7fcb441199cfcf9d223b372062705b3d9d41

SHA-256:
d02cb8660785ceecb0fffeb9cf9fc747dd6665f0ed88f0345a6fd943af1d41ad

Scanner detections:
6 / 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:
11/15/2024 10:40:02 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Trojan.InstallCore.890
9.0.1.047

ESET NOD32
Win32/InstallCore.AAG potentially unwanted application
10.7.0.302.0

G Data
Win32.Application.InstallCore.EG
16.2.25

Malwarebytes
PUP.Optional.Bundle
v2016.02.16.11

Reason Heuristics
PUP.installCore.DownloadStream.Installer (M)
16.2.16.23

Vba32 AntiVirus
Malware-Cryptor.InstallCore.gen
3.12.26.4

File size:
775.2 KB (793,768 bytes)

Product version:
5.6.9

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 Stream

Authority:
COMODO CA Limited

Valid from:
2/26/2015 5:00:00 PM

Valid to:
2/26/2017 4:59:59 PM

Subject:
CN=Download Stream, O=Download Stream, STREET="1930 Village Center Circle #3-1234", L=Las Vegas, S=NV, PostalCode=89134, C=US

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

Serial number:
6F743ED7A3F6BE2849D3B5B7D2D51E3A

File PE Metadata
Compilation timestamp:
6/19/1992 4:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:V6SppmokAS0jdcNIbtfCV9HfOsby83wzBejPZtWhAz7s+lu5Gm9AA9iIjUvjGsJw:V6SXmI2S14HfOs28A0DWWz5l5YcGsFw

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:
7.8846

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://cdn.open-downloadcontent.com/c?x=02eisXa8HrvZId2XRTFrrUbb/XMy Mm4JVSkD9uaVDk=&c=bF/HGC0kPpxtLCzE8wUh2VskPeK9GkYJmTzKTC AOUYYzVUhxaeKhsSWtWLp8tMW6sYmJAOB1GDR69/sT0axBkTdJY4qCiTftt7Sz1amTDZTZsK3efHOWrz60J31Bc7O&fallback_url=http://download-installer.cdn.mozilla.net/pub/firefox/releases/38.0.5/win32/.../Firefox Setup Stub 38.0.5.exe&downloadAs=Firefox_Setup.exe

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