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firefox.exe

The application firefox.exe has been detected as a potentially unwanted program by 16 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The setup routine uses the RevenYou.Com Pay Per Install platform (OutBrowse) which bundles additional software offers inclduing toolbars, extensions, PC utilities as well as other PUPs. The file has been seen being downloaded from downloader.ez-download.com.
MD5:
7c2c01c03935f77975cb9d2a6f0d0ff0

SHA-1:
620dcc34146c64af2105f6efd51e0aadd2cd8187

SHA-256:
acf9d7e8b26d76a18378b25a0099b0ab859f21de5f1c99f1eec852b5ba57e89d

Scanner detections:
16 / 68

Status:
Potentially unwanted

Explanation:
Bundles additional adware offers during download and installation using the OutBrowse installer.

Analysis date:
4/26/2024 2:13:59 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.OutBrowse
7.1.1

AhnLab V3 Security
PUP/Win32.OutBrowse
2015.03.03

Avira AntiVirus
PUA/Outbrowse.Gen
7.11.213.42

Dr.Web
Threat.Undefined
9.0.1.05190

ESET NOD32
Win32/OutBrowse.J potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/OutBrowse
3/2/2015

F-Prot
W32/Outbrowse.B.gen
v6.4.7.1.166

G Data
Win32.Application.OutBrowse
15.3.25

Kaspersky
not-a-virus:Downloader.NSIS.OutBrowse
15.0.0.543

McAfee
Program.Adware-OutBrowse
16.8.708.2

NANO AntiVirus
Trojan.Win32.Generic.cthmwf
0.30.0.296

nProtect
Trojan/W32.Agent.104325
15.03.02.01

Trend Micro House Call
TROJ_GEN.R08NC0PBQ15
7.2.61

Trend Micro
TROJ_GEN.R08NC0PBQ15
10.465.02

Vba32 AntiVirus
Downloader.NSIS.OutBrowse.o
3.12.26.3

VIPRE Antivirus
Threat.4150696
37788

File size:
101.9 KB (104,325 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\Documents and Settings\{user}\My documents\downloads\firefox.exe

File PE Metadata
Compilation timestamp:
12/5/2009 5:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:EgXdZt9P6D3XJ+CWZ5Ky/9XO3jR0eWSzUu/0W9:Ee34t2UQ9OzRgW/cq

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.6689

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://downloader.ez-download.com/download.php?id=23a0a912fd4ad218814beb3f5bd715001d751573&z=8&p=eyJweSI6ImV6IiwicnMiOiJnb29nbGUiLCJydCI6InNlYXJjaCIsImMiOiJ1cyIsIm8iOiJ3aW54cCIsImIiOiJjaDMyIiwidV9pZCI6ImV6XzUyZjc5NDUyOTgxZjQ1LjU0MjkxMjY1IiwicGFfaWQiOiI4Iiwic3RfaWQiOiIwIiwic3BfaWQiOiIwMDAwLTAwMDAiLCJ0cyI6MTM5MTk1NzA3NCwia3ciOiJmaXJlZm94IGJyb3dzZXIiLCJjdSI6ImZpcmVmb3ggYnJvd3NlciIsImNhIjpudWxsfQ==

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