Analysis
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max time kernel
103s -
max time network
99s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
03-06-2024 15:46
Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win11-20240426-en
General
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Target
Client-built.exe
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Size
78KB
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MD5
4ac3fe07724438ff7c3e3ba1fc92bbb3
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SHA1
20b3a217c9789769f30834be154e144317f25287
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SHA256
0ff130c66f8539585e58166cf27ff4f452baa925106e68f0ee39ab16933f0527
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SHA512
6fc513f4e14fb81b44997569df3c0a224c17e2ad4cd9664df52331c854fe1ef92d38ce12b114114b33d735f355faa17a2c6c0592110d977b2daa8612b3391d23
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SSDEEP
1536:52WjO8XeEXFh5P7v88wbjNrfxCXhRoKV6+V+qPIC:5Zv5PDwbjNrmAE+2IC
Malware Config
Extracted
discordrat
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discord_token
MTI0NzIwNDM3NzM3OTQ3MTQ4Mw.GWLx7p.fDU6rq8p_NFx3C6V9QrvUaRIvcVbRqtgosu9Ik
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server_id
1247204822399320144
Signatures
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Discord RAT
A RAT written in C# using Discord as a C2.
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Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 IoCs
flow ioc 1 discord.com 4 discord.com 6 discord.com 7 discord.com 8 discord.com 9 discord.com -
Modifies data under HKEY_USERS 48 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile\en-US LogonUI.exe Set value (str) \REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile\en-US\CachedLanguageName = "@Winlangdb.dll,-1121" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile\ShowShiftLock = "1" LogonUI.exe Key deleted \REGISTRY\USER\.DEFAULT\SOFTWARE\MICROSOFT\CTF\SORTORDER\ASSEMBLYITEM\0X00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31} LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Control Panel\Quick Actions\Pinned LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Control Panel\Quick Actions LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "54" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem LogonUI.exe Key deleted \REGISTRY\USER\.DEFAULT\SOFTWARE\MICROSOFT\CTF\SORTORDER\ASSEMBLYITEM\0X00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}\00000000 LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31} LogonUI.exe Set value (str) \REGISTRY\USER\.DEFAULT\Keyboard Layout\Preload\1 = "00000409" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292114432" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409 LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\TIP LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}\00000000 LogonUI.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}\00000000\CLSID = "{00000000-0000-0000-0000-000000000000}" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" LogonUI.exe Key deleted \REGISTRY\USER\.DEFAULT\SOFTWARE\MICROSOFT\CTF\SORTORDER\LANGUAGE LogonUI.exe Key deleted \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31} LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Keyboard Layout\Preload LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Control Panel LogonUI.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\Language\00000000 = "00000409" LogonUI.exe Key deleted \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409 LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile\en-US\0409:00000409 = "1" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent LogonUI.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = 99ebff004cc2ff000091f8000078d4000067c000003e9200001a6800f7630c00 LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365268" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" LogonUI.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}\00000000\Profile = "{00000000-0000-0000-0000-000000000000}" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\RAS AutoDial\Default LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Control Panel\Quick Actions\Pinned\ LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4290799360" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292114432" LogonUI.exe Set value (data) \REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile\Languages = 65006e002d005500530000000000 LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Control Panel\International\User Profile\ShowCasing = "1" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\HiddenDummyLayouts LogonUI.exe Key deleted \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}\00000000 LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\RAS AutoDial LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365268" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\Language LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Keyboard Layout\Substitutes LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\CTF\SortOrder\AssemblyItem\0x00000409\{34745C63-B2F0-4784-8B67-5E12C8701A31}\00000000\KeyboardLayout = "67699721" LogonUI.exe -
Suspicious behavior: LoadsDriver 10 IoCs
pid Process 4 Process not Found 4 Process not Found 4 Process not Found 4 Process not Found 4 Process not Found 668 Process not Found 4 Process not Found 4 Process not Found 4 Process not Found 4 Process not Found -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2656 Client-built.exe Token: SeShutdownPrivilege 4592 LogonUI.exe Token: SeCreatePagefilePrivilege 4592 LogonUI.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4592 LogonUI.exe 4592 LogonUI.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Client-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2656
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x0 /state0:0xa3a00855 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4592
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\ProgramData\Microsoft\Windows\SystemData\S-1-5-21-1696768468-2170909707-4198977321-1000\ReadOnly\LockScreen_Z\LockScreen___1280_0720_notdimmed.jpg
Filesize62KB
MD56cb7e9f13c79d1dd975a8aa005ab0256
SHA1eac7fc28cc13ac1e9c85f828215cd61f0c698ae3
SHA256af2537d470fddbeda270c965b8dbdf7e9ccf480ed2f525012e2f1035112a6d67
SHA5123a40359d8e4cc8792be78a022dc04daed5c1cc55d78fe9cf3e061ea5587baa15023ce2152238f5be5cc5124cd468f220cf9dab54344d93edd3dfcd400b24469d