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firefox_setup.exe

The application firefox_setup.exe has been detected as a potentially unwanted program by 4 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 download.ez-download.com.
MD5:
27d512db04636266a7e74011ff5c3c8e

SHA-1:
ece3207b83948d2d4054277f961492319acfb3af

SHA-256:
0b628eb8bf8029a9efb6694f920afe21c127c670174d7df6da3077cc21ced41d

Scanner detections:
4 / 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:
11/5/2024 10:35:15 PM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:PUP-gen [PUP]
160327-1

Dr.Web
Trojan.InstallCore.1903
9.0.1.05190

ESET NOD32
Win32/InstallCore.MM potentially unwanted application
8.0.319.0

Reason Heuristics
PUP.InstallCore.EST (M)
16.4.29.11

File size:
524.6 KB (537,208 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

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

File PE Metadata
Compilation timestamp:
6/19/1992 3:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:UfspT/+KegmFVG6Hu2iqsaelTEldwCJE/W+R9JSrYbSoZadAP:UfsBEgmHG6HTsianbSo/

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...
 
[+]

Entropy:
7.8859

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

Code size:
37 KB (37,888 bytes)

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

http://download.ez-download.com/download/.../6eiu4ggd0fdog4g14di1484uhgp7or3am99gnqq37545tgq6u180

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