Overview
overview
4Static
static
33rdParty/w...le.exe
windows10-2004-x64
33rdParty/w...le.exe
windows11-21h2-x64
3BASSMOD.dll
windows10-2004-x64
3BASSMOD.dll
windows11-21h2-x64
3BassMOD.Net.dll
windows10-2004-x64
1BassMOD.Net.dll
windows11-21h2-x64
1CommonHelpers.dll
windows10-2004-x64
3CommonHelpers.dll
windows11-21h2-x64
3CrapInstaller.dll
windows10-2004-x64
3CrapInstaller.dll
windows11-21h2-x64
4CrazyInstaller.exe
windows10-2004-x64
3CrazyInstaller.exe
windows11-21h2-x64
3ExternalLi...et.dll
windows10-2004-x64
1ExternalLi...et.dll
windows11-21h2-x64
1ExternalLi...ET.dll
windows10-2004-x64
3ExternalLi...ET.dll
windows11-21h2-x64
3ICSharpCod...ib.dll
windows10-2004-x64
1ICSharpCod...ib.dll
windows11-21h2-x64
1IOManager.dll
windows10-2004-x64
1IOManager.dll
windows11-21h2-x64
1InstallerS...rm1.js
windows10-2004-x64
3InstallerS...rm1.js
windows11-21h2-x64
3InstallerS...er.vbs
windows10-2004-x64
1InstallerS...er.vbs
windows11-21h2-x64
1InstallerS...es.vbs
windows10-2004-x64
1InstallerS...es.vbs
windows11-21h2-x64
1Ionic.Zlib.dll
windows10-2004-x64
1Ionic.Zlib.dll
windows11-21h2-x64
1KeyStego.exe
windows10-2004-x64
3KeyStego.exe
windows11-21h2-x64
3LoaderManager.dll
windows10-2004-x64
1LoaderManager.dll
windows11-21h2-x64
1Analysis
- max time kernel
149s - max time network
100s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
08/05/2026, 16:27
Static task
static1
Behavioral task
behavioral1
Sample
3rdParty/wbfs_file.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
3rdParty/wbfs_file.exe
Resource
win11-20260130-en
Behavioral task
behavioral3
Sample
BASSMOD.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral4
Sample
BASSMOD.dll
Resource
win11-20260130-en
Behavioral task
behavioral5
Sample
BassMOD.Net.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral6
Sample
BassMOD.Net.dll
Resource
win11-20260130-en
Behavioral task
behavioral7
Sample
CommonHelpers.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral8
Sample
CommonHelpers.dll
Resource
win11-20260130-en
Behavioral task
behavioral9
Sample
CrapInstaller.dll
Resource
win10v2004-20250619-en
Behavioral task
behavioral10
Sample
CrapInstaller.dll
Resource
win11-20260130-en
Behavioral task
behavioral11
Sample
CrazyInstaller.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral12
Sample
CrazyInstaller.exe
Resource
win11-20260130-en
Behavioral task
behavioral13
Sample
ExternalLibraries/BassMOD.Net.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral14
Sample
ExternalLibraries/BassMOD.Net.dll
Resource
win11-20260130-en
Behavioral task
behavioral15
Sample
ExternalLibraries/irrKlang.NET.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral16
Sample
ExternalLibraries/irrKlang.NET.dll
Resource
win11-20250610-en
Behavioral task
behavioral17
Sample
ICSharpCode.SharpZipLib.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral18
Sample
ICSharpCode.SharpZipLib.dll
Resource
win11-20260130-en
Behavioral task
behavioral19
Sample
IOManager.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral20
Sample
IOManager.dll
Resource
win11-20260130-en
Behavioral task
behavioral21
Sample
InstallerStub/Form1.js
Resource
win10v2004-20260130-en
Behavioral task
behavioral22
Sample
InstallerStub/Form1.js
Resource
win11-20260130-en
Behavioral task
behavioral23
Sample
InstallerStub/Properties/Resources.Designer.vbs
Resource
win10v2004-20260130-en
Behavioral task
behavioral24
Sample
InstallerStub/Properties/Resources.Designer.vbs
Resource
win11-20260130-en
Behavioral task
behavioral25
Sample
InstallerStub/Properties/Resources.vbs
Resource
win10v2004-20260130-en
Behavioral task
behavioral26
Sample
InstallerStub/Properties/Resources.vbs
Resource
win11-20260130-en
Behavioral task
behavioral27
Sample
Ionic.Zlib.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral28
Sample
Ionic.Zlib.dll
Resource
win11-20260130-en
Behavioral task
behavioral29
Sample
KeyStego.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral30
Sample
KeyStego.exe
Resource
win11-20260130-en
Behavioral task
behavioral31
Sample
LoaderManager.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral32
Sample
LoaderManager.dll
Resource
win11-20250610-en
General
- Target KeyStego.exe
- Size 25KB
- Sample260508-tx9s7set2r
- SHA256 e7bb93cfe7adf88918ce9eff9dadf5eb5b09e65c367285ac1046fdd5c0abf9bd
- MD5 82fc21e0104b957c03831b2d109f1fcd
- SHA1 1fda99d3c09b2572bba9c50fdba085311e60cd68
- SHA512 4cb845642d322352bd00a14479a04bbb962a75e70f7f7fe22208e7325eebf07dea00ccd8229899226afa47b3e1c1eb495960e7277ef27d848a822cd3c37ebe1f
- SSDEEP 384:+xrdpxq0ocOSF0vDI3p2dqsHuxgb2vP96uJLY53vf6QzUn4KlAlXJ947aRULY5f:+xrUSF0vDIZ2dqsHuxgbqTQWgw8U
- TLSH T114B2B72133688A27DAB816B1C87791EC0370BD169D54D69F2DE37BCF2EB1B040255E5B
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 21 IoCs
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff KeyStego.exe Set value (data) \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 14002e80922b16d365937a46956b92703aca08af0000 KeyStego.exe Set value (int) \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1" KeyStego.exe Key created \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell KeyStego.exe Key created \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 KeyStego.exe Key created \Registry\User\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\NotificationData KeyStego.exe Key created \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 KeyStego.exe Set value (data) \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff KeyStego.exe Set value (data) \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff KeyStego.exe Set value (str) \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Documents" KeyStego.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ KeyStego.exe Set value (data) \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 KeyStego.exe Key created \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags KeyStego.exe Key created \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell KeyStego.exe Key created \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU KeyStego.exe Set value (data) \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff KeyStego.exe Key created \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 KeyStego.exe Set value (data) \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 KeyStego.exe Key created \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ KeyStego.exe Key created \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings KeyStego.exe Set value (data) \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots KeyStego.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 396 KeyStego.exe 396 KeyStego.exe 396 KeyStego.exe 396 KeyStego.exe 396 KeyStego.exe 396 KeyStego.exe 396 KeyStego.exe 396 KeyStego.exe 396 KeyStego.exe 396 KeyStego.exe 396 KeyStego.exe 396 KeyStego.exe