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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:
cd3c6aa538c4beafa17f52add24b4381

SHA-1:
84556975e47bb338f69b6dce5b723ca23e47727b

SHA-256:
ad250dc785725405eade433fdc1e224067b37ed45884bb7d7bbfbd57980b19f1

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:
5/1/2024 8:50:06 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.144.176

avast!
Win32:OutBrowse-CH [PUP]
150319-1

AVG
Adware InstallCore.WN
2014.0.4311

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Trojan.Packed.24524
9.0.1.0100

ESET NOD32
Win32/InstallCore.BY potentially unwanted application
9.7.0.302.0

F-Prot
W32/InstallCore.R.gen
v6.4.6.5.141

G Data
Win32.Application.InstallCore.CJ
15.4.24

herdProtect (fuzzy)
variant of cc_setup.exe
2015.7.13.6

K7 AntiVirus
Unwanted-Program
13.176.11833

McAfee
Trojan.Artemis!D5155FF91FAC
5600.6799

NANO AntiVirus
Riskware.Win32.InstallCore.dfgmfk
0.28.2.62286

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.15408

Sophos
Install Core
4.98

Vba32 AntiVirus
Downware.InstallCore
3.12.26.0

VIPRE Antivirus
InstallCore
28488

File size:
660.5 KB (676,344 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:mhkOyMJfsGnJeCowvLokvkQvjuOi+W7PhbiCRoaSO7+t1i1MzK1ABpZoHxK:mOOyMJfs4pBMk8QvjulhxRXSF+1vWSxK

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:
7.7963

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=eyJweSI6ImV6IiwicnMiOiJnb29nbGUiLCJydCI6InNlYXJjaCIsImMiOiJ1cyIsIm8iOiJ3aW43IiwiYiI6ImNoMjkiLCJ1X2lkIjoiZXpfNTIyZjk5MzQxMWJmZDguNTQwNzY2MTYiLCJwYV9pZCI6IjAiLCJzdF9pZCI6IjAiLCJzcF9pZCI6IjAwMDAtMDAwMCIsInRzIjoxMzc4ODUxMTI0LCJrdyI6Im1vemlsbGEiLCJjdSI6Im1vemlsbGFmaXJlZm94IiwiY2EiOm51bGx9

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