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firefox_setup.exe

The application firefox_setup.exe has been detected as a potentially unwanted program by 17 anti-malware scanners. The program is a setup application that uses the Inno Setup installer, however the file is not signed with an authenticode signature from a trusted source. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from downloader.ez-download.com.
MD5:
fa80ff43a04452c575f95c45f2e4a96e

SHA-1:
c9136f7a7056cd890c20ce72b00d1a65be01b016

SHA-256:
d35ada89678270969d78f1ce0cb3adca8cbfec6beebc6aefb0d8808dc0235bb0

Scanner detections:
17 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Analysis date:
4/19/2024 10:55:16 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
PUA/InstallCore.Gen7
8.3.2.2

avast!
Win32:OutBrowse-CH [PUP]
150913-1

AVG
OutBrowse
2016.0.2961

Comodo Security
Application.Win32.InstallCore.KAU
23387

Dr.Web
Adware.InstallCore.133
9.0.1.05190

ESET NOD32
Win32/InstallCore.BY potentially unwanted application
7.0.302.0

F-Prot
W32/A-dbe1ec51
v6.4.7.1.166

K7 AntiVirus
Unwanted-Program
13.210.17488

Malwarebytes
PUP.Optional.InstallCore
v2015.10.10.05

Microsoft Security Essentials
Threat.Undefined
1.207.2059.0

NANO AntiVirus
Riskware.Win32.InstallCore.dfglks
0.30.26.3947

Quick Heal
PUA.Quickdownl.Gen
10.15.14.00

Sophos
PUA 'Install Core'
5.18

Total Defense
Win32/InstallCore.A!generic
37.1.62.1

Vba32 AntiVirus
Downware.InstallCore
3.12.26.4

VIPRE Antivirus
Threat.4786018
43798

File size:
663.8 KB (679,728 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

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

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):
12288:PgMJfsG6eryY0SvFVGuHmjNPNK4PDBSp1ktIJA8LE1e3bOw9z3K:PgMJfs3er/BT2K4PCSIq8w83qwg

Entry address:
0x98CC

Entry point:
55, 8B, EC, 83, C4, CC, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, FA, 97, FF, FF, E8, 01, AA, FF, FF, E8, 2C, CC, FF, FF, E8, 73, CC, FF, FF, E8, 0A, F3, FF, FF, E8, 71, F4, FF, FF, 33, C0, 55, 68, 76, 9F, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 2C, 9F, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, B0, 40, 00, E8, 9B, FE, FF, FF, E8, 26, FA, FF, FF, 8D, 55, F0, 33, C0, E8, E0, D0, FF, FF, 8B, 55, F0, B8, D8, BD, 40, 00, E8, AB, 98, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, D8, BD, 40, 00, B2, 01, B8...
 
[+]

Entropy:
7.8264

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

Code size:
36 KB (36,864 bytes)

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

http://downloader.ez-download.com/download.php?id=0b9477df1fb5c88fc05fdd1ce0dbae3f33d63c40B&z=0&p=eyJweSI6ImV6IiwicnMiOiJiaW5nIiwicnQiOiJzZWFyY2giLCJjIjoidXMiLCJvIjoid2luNyIsImIiOiJjaDI5IiwidV9pZCI6ImV6XzUyNGNmYzI5NDFiYzkyLjY4NTQ1Mzg4IiwicGFfaWQiOiIwIiwic3RfaWQiOiIwIiwic3BfaWQiOiIwMDAxLTAwMDAiLCJ0cyI6MTM4MDc3NzAwMSwia3ciOiJmaXJlZm94IGRvd25sb2FkIiwiY3UiOiJmaXJlZm94IGRvd25sb2FkIiwiY2EiOm51bGx9

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