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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 16 anti-malware scanners. The program is a setup application that uses the OutBrowse Revenyou installer. According to AVG, this software downloads additional adware offers during setup. The file has been seen being downloaded from get.file3desktop.com.
Publisher:
BEST App  (signed and verified)

MD5:
1d3e73e8780f25d3b09d8861b460709c

SHA-1:
0be4146d6295e040fc7d4310ff758fb81784b37a

SHA-256:
b55fff848e837947918619ad4f13c66db9d99c1be309a706c1b28b8aa77f259d

Scanner detections:
16 / 68

Status:
Adware

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

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
12/25/2024 2:19:38 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
MemScan:Application.Bundler.JU
6358959

Avira AntiVirus
APPL/Outbrowse.Gen
7.11.202.6

AVG
Downloader
2016.0.3227

Bitdefender
MemScan:Application.Bundler.JU
1.0.20.80

Dr.Web
infected with Trojan.OutBrowse.65
9.0.1.05190

ESET NOD32
Win32/OutBrowse.BS potentially unwanted application
7.0.302.0

Fortinet FortiGate
W32/Agent.BS!tr
1/16/2015

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

G Data
MemScan:Application.Bundler.JU
15.1.24

K7 AntiVirus
Trojan
13.191.14667

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

Malwarebytes
PUP.Optional.OutBrowse
v2015.01.16.05

McAfee
Artemis!591DF37B3C00
5600.6883

MicroWorld eScan
MemScan:Application.Bundler.JU
16.0.0.48

Reason Heuristics
PUP.BESTApp
15.1.16.17

Trend Micro House Call
Suspici.AF8C44A8
7.2.16

File size:
582.6 KB (596,592 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:
thawte, Inc.

Valid from:
1/13/2015 4:00:00 PM

Valid to:
12/17/2015 3:59:59 PM

Subject:
CN=BEST App, O=BEST App, L=Dublin, S=Dublin, C=IE

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

Serial number:
494DB00BAD332F5531355D1EBFBCBC2D

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:KF1Y3UCfF0U87K6ay6CkAROPwnVpXQDaI+mN02rdF:KvmUed826axEOoV2aTmmwr

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:
7.9682

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://get.file3desktop.com/.../Get?p=7392&d=10083&l=9525&n=1&dt=1413727118

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