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firefox_downloader.exe

Firefox Installer

Ez-download

The Adlogica setup manager, an installer that bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The application firefox_downloader.exe, “Deploy Firefox along with various offers” by Ez-download has been detected as adware by 6 anti-malware scanners. The program is a setup application that uses the Adlogica Downloader installer. This version of the installer will bundle a Mindspark/MyWebSearch Toolbar, a potentially unwanted web browser extension. 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:
Ez-download  (signed and verified)

Product:
Firefox Installer

Description:
Deploy Firefox along with various offers

Version:
25

MD5:
1006636b1d3b3110e05b78be7b4238c3

SHA-1:
f1455dbb7cecb88d5a936de503e2b0e5740d04d5

SHA-256:
3af20bc868cf4702c8e902e273ccf0c39205fa9d925418bda15a51e5e42fdc06

Scanner detections:
6 / 68

Status:
Adware

Explanation:
Bundles the Mindspark (MyWebSearch/Ask) toolbar, a web browser extension that will modify a user's search and home pages.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
11/2/2024 7:32:37 PM UTC  (today)

Scan engine
Detection
Engine version

ESET NOD32
Win32/Toolbar.MyWebSearch (variant)
7.9239

Malwarebytes
PUP.Optional.Downloadster
v2013.12.10.09

McAfee
Artemis!1006636B1D3B
5600.7262

Reason Heuristics
PUP.Installer.Ezdownload.S
14.8.7.23

Sophos
Ez Toolbar Downloader
4.96

Trend Micro House Call
TROJ_GEN.F47V1112
7.2.344

File size:
1.3 MB (1,364,328 bytes)

Product version:
25

Copyright:
©ez-download

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Adlogica Downloader

Language:
English (United States)

Common path:
C:\users\{user}\downloads\firefox_downloader.exe

Digital Signature
Signed by:
Ez-download

Authority:
COMODO CA Limited

Valid from:
8/13/2013 8:00:00 PM

Valid to:
8/14/2015 7:59:59 PM

Subject:
CN=Ez-download, O=Ez-download, STREET=96 Jessie st 4th floor, L=SAN FRANCISCO, S=CA, PostalCode=94105, C=US

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00F70CD1FD9DEF6FE1E710D56A167734BD

File PE Metadata
Compilation timestamp:
9/16/2013 7:17:45 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:R9OSiCcFYIYdv+tDUwadbW5Q+mrR3e5xW/e+qeT8hSCWUD6/vkRTHdeZ:niSKmrR3Xe+WQY6/qTHy

Entry address:
0x110400

Entry point:
55, 8B, EC, 83, C4, F0, B8, A0, E9, 50, 00, E8, D4, 71, EF, FF, 8B, 0D, A0, A5, 51, 00, 8B, 09, B2, 01, A1, 38, 3E, 4C, 00, E8, D0, F2, F4, FF, 8B, 15, 94, A6, 51, 00, 89, 02, A1, A0, A5, 51, 00, 8B, 00, E8, D4, 8A, F5, FF, A1, A0, A5, 51, 00, 8B, 00, B2, 01, E8, 6E, A9, F5, FF, 8B, 0D, 78, A3, 51, 00, A1, A0, A5, 51, 00, 8B, 00, 8B, 15, F0, 1D, 50, 00, E8, C6, 8A, F5, FF, A1, A0, A5, 51, 00, 8B, 00, E8, F2, 8B, F5, FF, E8, 29, 4B, EF, FF, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
6.6717

Developed / compiled with:
Microsoft Visual C++

Code size:
1.1 MB (1,111,552 bytes)

The file firefox_downloader.exe has been seen being distributed by the following 2 URLs.

http://downloader.ez-download.com/download.php?id=cb73444fc0a9688d7e962a6627f6d2a0e6f7429e&z=2&p=eyJweSI6ImV6IiwicnMiOiJzYWZlIiwicnQiOiJzZWFyY2giLCJjIjoiZ2IiLCJvIjoid2luOCIsImIiOiJjaDMxIiwidV9pZCI6ImV6XzUyOGRjZjA1ZDY5ZTMwLjAzMzA2OTg2IiwicGFfaWQiOiIyIiwic3RfaWQiOiIwIiwic3BfaWQiOiIwMDAwLTAwMDAiLCJ0cyI6MTM4NTAyNTI4NSwia3ciOiJmaXJlZm94IiwiY3UiOiJmaXJlZm94IiwiY2EiOm51bGx9

http://dl.ez-download.com/.../firefox_downloader.exe

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