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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:
689a9df3c1cb6a7fccee3a11933cb58b

SHA-1:
869f3e162374239ff0a0dd2d150430b0b8d1905b

SHA-256:
b1a2d56e9dd314eaf04b413c79a4e89eb08dbd3fb9728f99087a7ffd396ad501

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:
5/19/2024 11:51:52 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.Download.Installer (M)
16.5.21.8

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\temporary internet files\content.ie5\{random}\firefox_setup.exe

Digital Signature
Signed by:
Download Sphere

Authority:
COMODO CA Limited

Valid from:
1/8/2015 6:00:00 PM

Valid to:
1/8/2017 5:59:59 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 5:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:QRhMX6Ur/VzdyjW6cvUTOQBOWwd1jODAAi:Q7of/VJyC6cMllwPjuu

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.downloadbfiles.net/?downloadAs=Firefox_Setup.exe&data=CKyWO4drNvSPpM0ck jyqB0PQ9Q9gCOuNyUhafUr/gj1fzIIsBY/tD5lJ6vALwoLZponDWAYB1 nX3VN7RAgg1kWaHeuR2HblXYFl cErF0bvXIi/C1xiXvkFi/bLePD0ou 2mgzjlpbc8ficRtSvW72SfXOYDNcOtxGIZfIAOe7B7fk0bsEkCcoDdjHvNAeJ6exjbdYvHvDZ5SxvvmEN/MpC4TBbiLMP6PBzXnjZxDgMZmPn5bYGIRo0szwMBI9pQUOtAmszWsv8Dct0Yvv NOq F9guS0zN7o6EPK5EadJ18rNby/TpYYeguhdv1 LgUerYvsBWWIO9UtOpYvRspWcgHuYkgtTb3AcKQPaoiPHQ/yz59ft1la0MBVOO2nb1Yf/do3lSaGJFauxCE2UObrb/pDiPOGWXAgk/f7dvAaO2C4v7woJLlbKsuSF/1rGi4 bIGbQ2Nyp/ol2hoac3DhFpC3/fv9wmM9Occ0A1VUdR9AqLhG/7yvt7aLVADcmO3kycXMh6A2rq4MmeT1fcEE766cuBtUxNeuhozwZtF7W0CkRIx3rF8znFGfv40QdKfoSEgSs2NzXAtNZW1A95luKt3Elc5n7XjKPjIzEqswPOuFblS9DMFaOniNJB4jQki/rVvK0QLYBHVxzrOWV6ZrAjIMnul4csXbDD/.../bUCXYWjVretSbpzD0QJS64tCgVuUQ7Hr3eYaMnpe6hY4hddcySRXqgttltJgG9GvcFGbPqusmeF2Mi5XFrsQzOQaD8BUcLPIwd8KOzGAoVR9sT zIRvcUFN8amrMQPZ9rkPK627ZKSz0EPBhyjtaVcKzaZRnt2mZIpeehGDKKKNgF9ptic07aUgP9rYOtAkCXimJIDAzoCiTnFOvWdc vanBe

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