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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 9 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.bestusefuldownloads.com.
Publisher:
Bestop-app  (signed and verified)

MD5:
665357fc9eba2cb5ea51cc2d25d84971

SHA-1:
998b24587bcab8845e3bafd683c413dc7defcf1a

SHA-256:
e58b1958db9f1e349d32577c03c12c6a7305871def3b606280f545eebe4fc030

Scanner detections:
9 / 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 is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
4/20/2024 12:47:36 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2015.0.3387

Dr.Web
Trojan.Packed.24524
9.0.1.0221

ESET NOD32
Win32/InstallCore.PK potentially unwanted application
8.7.0.302.0

herdProtect (fuzzy)
variant of 2048setup.exe (Adware)
2014.10.9.20

K7 AntiVirus
Unwanted-Program
13.183.12998

Kaspersky
not-a-virus:AdWare.Win32.InstallCore
14.0.0.3432

Malwarebytes
PUP.Optional.Downloader
v2014.08.09.12

Sophos
Install Core Click run software
4.98

VIPRE Antivirus
Threat.4788237
31208

File size:
704 KB (720,928 bytes)

Product version:
1.5

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:
4/2/2014 8:00:00 AM

Valid to:
4/3/2015 7:59:59 AM

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:
6/20/1992 6:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:WQFaBnqUWy0hba7qsWCm0nMDs2RwJy2NEEXhYP4NTxB3Bbaf7YkDR1c:WQFMq1VhbaVBDnMxqJy1E04NTCDX

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:
7.8749

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 URL.

http://www.bestusefuldownloads.com/flv-player/adbr4/.../?dl=1&chnl=57050&lg=en&dp=Ym89MTMmY2lwaWQ9NTYxMDEwJmNpc2lkPTg4Rjk2NEMxMTIxNjUzMDU3MTQ5MzYwNjcwNCZjaXJpZD04OEY5NjRDMTEyMTY1MzA1ODE4MzkxNTU5NTImc2xpZD0wJnN1YmlkPTUwMDE1MDQxNzIxODAwMDAwMCZjaXVpZD04MDkxMDc4NjIxNzQ5NzM3OTAmc289MiZjcmlkPTIxMjMwMzgmZXhjaWQ9MjImbW10PTAmb3NsaWQ9MTkyNDgmY250cnk9MTY4JmNpY21wPTI4MTY3OCZwdWJpZD01NzA1MA==&webid=09486265-7b17-45a1-9b2b-656b83923c9e&lp=adbr4

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