firefox_setup.exe

Program Installer

Download Nozzle

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, “Program Installer Setup ” by Download Nozzle 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:
Application   (signed by Download Nozzle)

Product:
Program Installer

Description:
Program Installer Setup

Version:
5.0.5.7

MD5:
83c0a70ee03ca512a7ffd37c553c1482

SHA-1:
d137ad41ec7975075b24428de0c257e3128efab9

SHA-256:
e9aebbcb169d89f78d4dfccf4a6c3fb7e3741e9d0d56d062d6025de10d1dea84

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 3:03:27 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.Download.Installer (M)
16.6.3.5

File size:
761.3 KB (779,520 bytes)

Product version:
5.0

Copyright:
Generic

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:

Authority:
COMODO CA Limited

Valid from:
2/27/2015 5:30:00 AM

Valid to:
2/27/2017 5:29:59 AM

Subject:
CN=Download Nozzle, O=Download Nozzle, 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:
17673F2BF5E9191670D058AFB6415514

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):
12288:OMQ0a223cbP1WjjAKUL8B3G0CxQXcnHJDuKkbTNaVL41lSEf1:OF0b2MbdP47EQOXKTNS4nJ9

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:
7.8780

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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