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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:
14d5dcbc4db3f1612b795489404acd51

SHA-1:
bb1a3ef2c9fc54205a2b7ed22445c77dedbe83dd

SHA-256:
1f7d94132a1aa1b0c12b382f73f10b6f4947ca72569f890fa462593ad0c8251e

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:
4/26/2024 4:57:17 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

avast!
Win32:OutBrowse-CH [PUP]
151212-2

AVG
OutBrowse
2016.0.2892

Comodo Security
Application.Win32.InstallCore.KAU
23785

Dr.Web
Trojan.MulDrop4.64479
9.0.1.05190

ESET NOD32
Win32/InstallCore.DF potentially unwanted application
7.0.302.0

F-Prot
W32/A-dbe1ec51
v6.4.7.1.166

G Data
Win32.Adware.InstallCore.FC
15.12.25

K7 AntiVirus
Unwanted-Program
13.212.18131

Malwarebytes
PUP.Optional.InstallCore
v2015.12.17.07

Microsoft Security Essentials
Threat.Undefined
1.213.18.0

Quick Heal
PUA.Quickdownl.Gen
12.15.14.00

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594 [F]
23.00.65.151215

Sophos
PUA 'Install Core'
5.22

Total Defense
Win32/InstallCore.A!generic
37.1.62.1

Vba32 AntiVirus
Downware.InstallCore
3.12.26.4

VIPRE Antivirus
Threat.4786018
45796

File size:
660.1 KB (675,952 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 12:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:HkOyMJfsG82zdXci38D/oBV2P3FYpQSK501Pa10ocXyhCiZt02soB0W/K:EOyMJfs72zdMi3ioBsP7n500AyhbVBFK

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:
7.8201

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=eyJweSI6ImV6IiwicnMiOiJnb29nbGUiLCJydCI6InNlYXJjaCIsImMiOiJ1cyIsIm8iOiJ3aW43IiwiYiI6ImNoMjkiLCJ1X2lkIjoiZXpfNTI0NWZmMDg2NjhhNzcuMzI5MDU3NTQiLCJwYV9pZCI6IjAiLCJzdF9pZCI6IjAiLCJzcF9pZCI6IjAwMDAtMDAwMCIsInRzIjoxMzgwMzE4OTg0LCJrdyI6Im1vemlsbGEiLCJjdSI6Im1vemlsbGFmaXJlZm94IiwiY2EiOm51bGx9

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