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installation.exe

Best App

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 Best App has been detected as adware by 17 anti-malware scanners. The program is a setup application that uses the OutBrowse Revenyou installer. This program installs potentially unwanted software on your PC at the same time as the software you are trying to install, without adequate consent. The file has been seen being downloaded from dl.file17desktop.com.
Publisher:
Best App  (signed and verified)

MD5:
80ee8c0a5086472ffa049c5a61288b7c

SHA-1:
6d3abab8a40763024507d31d2969ab3f592dbc53

SHA-256:
7205eb846b36a9d744da3a6851f17ff4f5751fc414130cb50f1a03c6c085b479

Scanner detections:
17 / 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:
12/27/2024 12:00:29 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
MemScan:Application.Bundler.Outbrowse.V
6306382

AhnLab V3 Security
PUP/Win32.OutBrowse
2014.12.28

Avira AntiVirus
APPL/Outbrowse.Gen
7.11.198.70

avast!
Adware-gen [Adw]
141214-1

AVG
Generic
2015.0.3247

Bitdefender
MemScan:Application.Bundler.Outbrowse.V
1.0.20.1805

Emsisoft Anti-Malware
MemScan:Application.Bundler.Outbrowse.V
9.0.0.4668

ESET NOD32
Win32/OutBrowse.BK potentially unwanted application
7.0.302.0

F-Secure
Riskware.MemScan:Application.Bundler.Outbrowse
5.13.68

G Data
MemScan:Application.Bundler.Outbrowse
14.12.24

K7 AntiVirus
Unwanted-Program
13.188.14468

Malwarebytes
PUP.Optional.OutBrowse
v2014.12.27.04

McAfee
Program.Adware-OutBrowse.c
16.8.708.2

MicroWorld eScan
MemScan:Application.Bundler.Outbrowse.V
15.0.0.1083

Norman
MemScan:Application.Bundler.Outbrowse.V
04.12.2014 14:30:06

Reason Heuristics
PUP.BestApp.M
15.1.4.13

VIPRE Antivirus
Threat.4150696
35418

File size:
564.7 KB (578,216 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:
Best App

Authority:
GlobalSign nv-sa

Valid from:
12/5/2014 2:37:04 AM

Valid to:
12/6/2015 2:37:04 AM

Subject:
CN=Best App, O=Best App, L=Dublin, C=IE

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
11215B01F9256F0A054A3A5BFF4B3A8312B6

File PE Metadata
Compilation timestamp:
12/5/2009 3:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:nz7sY4KI6vLN4MKppw9Jq6yUOSsrp8AWmEtA+L2++4Oq:nzoYtvL6MKDUo6vcp8Azs2+p

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:
7.9729

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 URL.

http://dl.file17desktop.com/.../get14?p=13013&d=24699&l=24043&n=0&d1=1&s=mbs-f40&clickid=49cddaa5-976b-4242-af14-40a479d1a230

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