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brothersoft_downloader_for_guitar_pro.exe

KORAM GAMES LIMITED

The application brothersoft_downloader_for_guitar_pro.exe by KORAM GAMES LIMITED has been detected as a potentially unwanted program by 11 anti-malware scanners. The program is a setup application that uses the Inno Setup 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 downloaderfile.brothersoft.com and multiple other hosts.
Publisher:
KORAM GAMES LIMITED  (signed and verified)

MD5:
747822786aebf99d9d6a1b024583247d

SHA-1:
6788f18609b7a773c1bef70e72127b075b8478b6

SHA-256:
3cd80984388aea5586e7f03fb4a8959327da1dc23a9c6f9752cd48764e9c8dc6

Scanner detections:
11 / 68

Status:
Potentially unwanted

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

Analysis date:
4/19/2024 12:59:43 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
Adware/InstallCore.A.416
7.11.164.8

AVG
Generic
2016.0.3173

Dr.Web
Adware.InstallCore.433
9.0.1.071

ESET NOD32
Win32/InstallCore.PQ (variant)
9.10156

Fortinet FortiGate
Riskware/InstallCore
3/12/2015

herdProtect (fuzzy)
variant of brothersoft_downloader_for_itunes_library_mover.exe
2015.6.18.21

K7 AntiVirus
Unwanted-Program
13.181.12846

McAfee
Artemis!747822786AEB
5600.6829

Reason Heuristics
PUP.Optional.Installer
15.3.12.11

VIPRE Antivirus
Brothersoft Downloader
31618

File size:
698.7 KB (715,496 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

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

Digital Signature
Signed by:
KORAM GAMES LIMITED

Authority:
VeriSign, Inc.

Valid from:
1/9/2014 6:00:00 PM

Valid to:
2/8/2017 5:59:59 PM

Subject:
CN=KORAM GAMES LIMITED, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=KORAM GAMES LIMITED, L=HongKong, S=HongKong, C=HK

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
53B6BD34F6B702DEC3C291D72E678EEF

File PE Metadata
Compilation timestamp:
6/19/1992 5:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:mGkFarr/1+PeVGRaCUj0Of7MHLBOObUNy+LeYPoX9uLmnQwUA4aDD:m3Fsr/1idab7MHgOoQZeefTD

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:
7.8742

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

Code size:
37 KB (37,888 bytes)

The file brothersoft_downloader_for_guitar_pro.exe has been seen being distributed by the following 5 URLs.

http://downloaderfile.brothersoft.com/cache/brothersoft/1403691233/.../Brothersoft_downloader_For_Guitar_Pro.exe

http://downloaderfile.brothersoft.com/wind_down.php?url=http://usfiles.brothersoft.com/home_education/.../GP5DEMO_75291.exe&name=Guitar Pro&soft=75291

http://usfiles.brothersoft.com/home_education/.../GP5DEMO_75291.exe

http://ppdjs.brothersoft.com/d.php?soft_id=75291&url=http://usfiles.brothersoft.com/home_education/.../GP5DEMO_75291.exe&name=Guitar Pro

http://www.brothersoft.com/d.php?soft_id=75291&url=http://usfiles.brothersoft.com/home_education/.../GP5DEMO_75291.exe&name=Guitar Pro

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