Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
28-05-2024 19:17
Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
Client-built.exe
Resource
win10v2004-20240508-en
General
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Target
Client-built.exe
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Size
78KB
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MD5
2e9b01395d9003c387488b3c40997af6
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SHA1
bd92df65650a9d026f2f285d2a3e1c6207bb7841
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SHA256
fcc8a339b67be5048d0cd6d6c96a501dc828295cb42a7a7dedcd5ecc46af3aa8
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SHA512
c61d57ffed70e3f9645d365222bd44bcb0f711e842f9eb5ec9a75e0b6db246baaa88b3fc474a078c5bc326ad07966371dbd0707e598ba2ac4959b8a36713872b
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SSDEEP
1536:52WjO8XeEXFh5P7v88wbjNrfxCXhRoKV6+V+czPIC:5Zv5PDwbjNrmAE+crIC
Malware Config
Extracted
discordrat
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discord_token
MTE5MTE4NTUyMTUxMTI1NjExNA.GqKuPf.gM4mTGhIlNa_ecpflvBk1TeLJOKMxL4Ve4BzP8
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server_id
1243579352478777454
Signatures
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Discord RAT
A RAT written in C# using Discord as a C2.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Client-built.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation Client-built.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 9 IoCs
Processes:
flow ioc 58 discord.com 83 discord.com 57 discord.com 10 discord.com 32 discord.com 56 discord.com 81 discord.com 82 discord.com 9 discord.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies data under HKEY_USERS 15 IoCs
Processes:
LogonUI.exedescription ioc process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History 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\AccentColor = "4292311040" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "233" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" LogonUI.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" LogonUI.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
Client-built.exeshutdown.exedescription pid process Token: SeDebugPrivilege 548 Client-built.exe Token: SeShutdownPrivilege 1596 shutdown.exe Token: SeRemoteShutdownPrivilege 1596 shutdown.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
LogonUI.exepid process 4648 LogonUI.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
Client-built.exedescription pid process target process PID 548 wrote to memory of 1596 548 Client-built.exe shutdown.exe PID 548 wrote to memory of 1596 548 Client-built.exe shutdown.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⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:548 -
C:\Windows\System32\shutdown.exe"C:\Windows\System32\shutdown.exe" /s /t 02⤵
- Suspicious use of AdjustPrivilegeToken
PID:1596
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa3924855 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4648