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firefox_setup.exe

The application firefox_setup.exe has been detected as a potentially unwanted program by 8 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:
3b161edc2f94d5f5baa1f6578d6f22d6

SHA-1:
2304a3223435555390c92ba09e5051219b29b3a7

SHA-256:
a5939cc2fe2355eb58efcaab14270212614c56b434cedee1fd6ae76c2c7d8449

Scanner detections:
8 / 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:
4/18/2024 12:37:06 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:OutBrowse-CH [PUP]
151222-1

AVG
Adware InstallCore.VP
2015.0.4489

Clam AntiVirus
Win.Adware.Installcore-592
0.98/21210

Dr.Web
Adware.InstallCore.133
9.0.1.05190

ESET NOD32
Win32/InstallCore.BY potentially unwanted application
7.0.302.0

Microsoft Security Essentials
Threat.Undefined
1.213.1371.0

Sophos
PUA 'Install Core'
5.22

VIPRE Antivirus
Threat.4150696
46156

File size:
667 KB (683,016 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 6:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:jMJfsGCwFdtuvAlqWN1M5DbQcZHcBugwH7i0IAKTeJYzXngmg0LbtS3lrxD2F91t:jMJfsN+yAggkNeugqi0I11Xpg0VStwFd

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:
7.8241

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=4b8266b51f0b79677dbe30d0bddd25de26ff23b1&z=0&p=eyJweSI6ImV6IiwicnMiOiJnb29nbGUiLCJydCI6InNlYXJjaCIsImMiOiJ1cyIsIm8iOiJ3aW43IiwiYiI6ImNoMzAiLCJ1X2lkIjoiZXpfNTI3MTFlZmU5MjJhMjIuODQxMzc4MDQiLCJwYV9pZCI6IjAiLCJzdF9pZCI6IjAiLCJzcF9pZCI6IjAwMDAtMDAwMCIsInRzIjoxMzgzMTQ1MjE0LCJrdyI6Im1vemlsbGEiLCJjdSI6Im1vemlsbGFmaXJlZm94IiwiY2EiOm51bGx9

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