installation.exe

MAXTEK LLC

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application installation.exe by MAXTEK has been detected as adware by 14 anti-malware scanners. The program is a setup application that uses the OutBrowse Revenyou installer. 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.
Publisher:
MAXTEK LLC  (signed and verified)

MD5:
15ad9f2b311f962b2e9762015cfa9123

SHA-1:
89fbca5a8ec10d7433e4b3b9c627ae93eeb8b4af

SHA-256:
cacece9d30c91f508d726207c4aa72be2f64e7450ff14cc05b1637f05ea239e5

Scanner detections:
14 / 68

Status:
Adware

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

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
5/17/2024 5:36:42 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.OutBrowse
7.1.1

AhnLab V3 Security
PUP/Win32.OutBrowse
2015.01.08

Avira AntiVirus
W32/Sality.AT
7.11.30.172

AVG
Generic
2016.0.3236

Dr.Web
Trojan.OutBrowse.58
9.0.1.05190

ESET NOD32
Win32/OutBrowse.BQ potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/OutBrowse
1/7/2015

K7 AntiVirus
Trojan
13.1814571

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

Malwarebytes
PUP.Optional.OutBrowse
v2015.01.07.09

McAfee
Adware-OutBrowse.d
5600.6892

Reason Heuristics
PUP.Bundler.Outbrowse
15.3.18.1

Trend Micro House Call
Suspici.202D3B0F
7.2.7

VIPRE Antivirus
Threat.4657539
36340

File size:
581.1 KB (595,016 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou (using Nullsoft Install System)

Language:
Language Neutral

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

Digital Signature
Signed by:

Authority:
thawte, Inc.

Valid from:
12/21/2014 7:00:00 PM

Valid to:
12/22/2015 6:59:59 PM

Subject:
CN=MAXTEK LLC, O=MAXTEK LLC, L=Kiev, S=Kiev, C=UA

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
058B5B9DB91E1063D1BF9AB3385D4B88

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):
12288:DQmpCW16MFOfOGlk8J3xGLCaFtWZbyBLOYlHRN0c:DjpCW8MkWGmxLCaroyBLxHRX

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:
7.9746

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file installation.exe has been seen being distributed by the following 2 URLs.

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