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mozilla-firefox-31-0-32-bits.exe

No Zebra Network Ltda.

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application mozilla-firefox-31-0-32-bits.exe by No Zebra Networka has been detected as adware by 11 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. 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:
No Zebra Network Ltda.  (signed and verified)

MD5:
6f7be823815912d8b0c9031e6d44eca9

SHA-1:
5092c5a569088ec3ecc0936f2ab53fa2c5a84c97

SHA-256:
4bc6914c69a95ddbd210a552d49488d55e582b575e72d2652de45cf72480a08f

Scanner detections:
11 / 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 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:
4/19/2024 6:52:54 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2015.0.3342

Baidu Antivirus
Adware.Win32.InstallCore
4.0.3.14924

ESET NOD32
Win32/InstallCore.QL (variant)
8.10412

F-Prot
W32/InstallCore.AC.gen
v6.4.7.1.166

herdProtect (fuzzy)
variant of lighten-pdf-to-word-3-0-2-32-bits.exe (Adware)
2014.12.6.1

K7 AntiVirus
Unwanted-Program
13.183.13358

Malwarebytes
PUP.Optional.InstallCore
v2014.09.24.02

McAfee
Artemis!6F7BE8238159
5600.6998

Reason Heuristics
PUP.NoZebraNetworka.CC
14.9.24.2

Trend Micro House Call
Suspicious_GEN.F47V0910
7.2.267

VIPRE Antivirus
InstallCore
33076

File size:
673 KB (689,200 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\mozilla-firefox-31-0-32-bits.exe

Digital Signature
Signed by:
No Zebra Network Ltda.

Authority:
Thawte, Inc.

Valid from:
8/11/2014 9:00:00 PM

Valid to:
8/12/2015 8:59:59 PM

Subject:
CN=No Zebra Network Ltda., OU=IT, O=No Zebra Network Ltda., L=Curitiba, S=Paran, C=BR

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
49D9BC150ECE10C921669720128B3CF3

File PE Metadata
Compilation timestamp:
6/19/1992 7:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:PDvpAFf8fPZqgDV+hKxdNuryvHZ50y1s3Ve10MupnVQsJ3h2gNEhi6ELo2uQJjWO:PDvSFf8nZI3yBOwWVIDwxh2g+ULLoUSv

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...
 
[+]

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

Code size:
37 KB (37,888 bytes)

The file mozilla-firefox-31-0-32-bits.exe has been seen being distributed by the following 6 URLs.

http://gerenciador.nzs.com.br/nocache/programas/urls/iron/.../mozilla-firefox-2-11-4102812.exe

http://gerenciador.nzs.com.br/nocache/programas/urls/iron/.../mozilla-firefox-15-71-4102892.exe

http://gerenciador.nzs.com.br/nocache/programas/urls/iron/.../mozilla-firefox-54-41-4102803.exe

http://gerenciador.nzs.com.br/nocache/programas/urls/iron/.../mozilla-firefox-43-9-4102813.exe

http://gerenciador.nzs.com.br/nocache/programas/urls/iron/.../mozilla-firefox-81-91-4102813.exe

http://gerenciador.nzs.com.br/nocache/programas/urls/iron/.../mozilla-firefox-8-11-4102803.exe

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