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firefox_setup.exe

Dnldstr_Aggregator Downloader

Download Sphere

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 by Download Sphere 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. The installer is marketed through download protals and search ads as the free Mozilla Firefox web browser but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
Dnldstr_Aggregator  (signed by Download Sphere)

Product:
Dnldstr_Aggregator Downloader

Version:
6.0.45.34368

MD5:
c7d48046685e57b0e1b20846f6184d2b

SHA-1:
21024b6f418fe3093d5c97dd76a9b9a70946f816

SHA-256:
6567d2cf748edf5da3a211bfff3c96bbc1583067d7215f74fe2c354c96a94559

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 an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
12/25/2024 5:54:18 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
17.1.19.22

File size:
773.9 KB (792,480 bytes)

Product version:
6.0.45.34368

Copyright:
Dnldstr_Aggregator

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\firefox_setup.exe

Digital Signature
Signed by:
Download Sphere

Authority:
COMODO CA Limited

Valid from:
1/8/2015 7:00:00 PM

Valid to:
1/8/2017 6:59:59 PM

Subject:
CN=Download Sphere, O=Download Sphere, 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:
09ED318A28B41FD6E81D57ED46FD6A2D

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

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.8854

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

Code size:
39.5 KB (40,448 bytes)

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

http://cdn.downloadzonefiles.org/?downloadAs=Firefox_Setup.exe&data=P jbGhHsOQCAHxWFWa9uUNCK1M/PaapfWsIR7dxzcIZDVmzRxQVRax 82qe7sBNhxSerBXnU/1ObQtLR75Yz9LHY5gYoiULE4nmc/6CiGKPk7ZaeU9N12eJ0CgGQ/GaJRPWOIp sR9wtPqnmhB 5ri43dBf2ZjKNVBuGhES8o64uZnF8OY9SnmmrzvcHtRBG/Ic zn/25c8tmKvXA8kRC1X7c X7qRiV38gF8JI4nv2D//zWHHe3T2H/BjqO/I9oxwaRbq7jNjwWo5R6kGbTJMH/ROgJVh0RczfxDsENqX2Hkhac8ywouNJPcZE0aRjfm8kJWXsMmzLeDPRfoLWLuWSREHq HqFztSLyhekPAE/Llec dnDr4i4N4TuhCLw6hHcWM0cv9gfYqjCDfJfW5tYLaok/qIO5LUfNYJvcIaEEKAQQ/c0zL3bNVHE/EMUQxPCESdPkQEncSHzVeWpGemfABYO3JsmZA2FVpqSEOatjeXZ2AZ2 GZlPFsoy939CpmH82nvTU0pVFWs//7Cl/Az5LgqHh7zZ9mAQwSAlSY7/Ca kt0rEY7K3b8b9NK3/o4OSXv49zdavRQkMqrRd1Hac4Ha85NtaC5AeJlsWK3Q18s5A3xm2WXjCPwq 8SS1Yhqq07FMFCCGcr4hUjxEVnzfAJagvnSiJvlX2N7w1IWrnt1f3YbLk7NWngyQ1h4eKrK8 5sTQXbEO0 DuA3gurE0iOEyrsMEb5zKOUAHRD0fJQ7C2z7xFAF8SSwzJKGmCNrxGWFrZugBBCmnPO8 aElyhlgTexH2PiJBW9TGLiy/91I6MI3V MXGlLXeShK6NZfB73nSsJCP/m/.../1WCH64gI8MEfreWZw830rBJxUWuhTmbo9fAksvudP3BAnnYuNLmm

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