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flvplayersetup.exe

Bestop-app

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application flvplayersetup.exe by Bestop-app has been detected as adware by 10 anti-malware scanners. The program is a setup application that uses the installCore installer. 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 www.installsyard.com and multiple other hosts.
Publisher:
Bestop-app  (signed and verified)

MD5:
460e4f4dba962cf752c7cb3f043bac86

SHA-1:
f0d3dee40bc2fa41c1e9ed1f24c6e1a2d78c1752

SHA-256:
1a57915d7b69878de20c88c71ced1498a33e93e06b2925f07e0adb5d16948d1c

Scanner detections:
10 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

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:
5/15/2024 1:42:16 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2015.0.3330

Dr.Web
Trojan.Packed.24524
9.0.1.05190

ESET NOD32
Win32/InstallCore.QH potentially unwanted application
7.0.302.0

F-Prot
W32/InstallCore.AC.gen
v6.4.7.1.166

K7 AntiVirus
Unwanted-Program
13.183.13584

Malwarebytes
PUP.Optional.InstallCore
v2014.10.05.09

McAfee
CryptInno
5600.6986

Reason Heuristics
PUP.Installer.Bestopapp.O
14.10.5.21

Sophos
Install Core Click run software
4.98

VIPRE Antivirus
Threat.4788237
33624

File size:
778 KB (796,680 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

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

Digital Signature
Signed by:
Bestop-app

Authority:
COMODO CA Limited

Valid from:
4/1/2014 8:00:00 PM

Valid to:
4/2/2015 7:59:59 PM

Subject:
CN=Bestop-app, O=Bestop-app, STREET=28A Lillinblam St., L=Tel-Aviv, S=Israel, PostalCode=651307, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00C583348E8D545D9877E51DBB79A3DECB

File PE Metadata
Compilation timestamp:
6/19/1992 6:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:cuFgPlxsdh6wQC3vDDP86hDF0k0eXFBp0er0au:c8ggEwQC7w6/Xwer

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.8778

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

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

http://www.installsyard.com/flv-player/gcp/.../?dl=1&dp=ZZf2718408Za2033042Zg27Zw8Zm52Zc1856000680,1856000680Zs144Zi0ZZ

http://www.software-junky.com/flv-player/gcp/.../?dl=1&dp=ZZf2718408Za2033042Zg27Zw8Zm52Zc1856000680,1856000680Zs144Zi0ZZ

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