Analysis
- user interaction
yes - max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
18/07/2026, 14:02
General
- Target ThirdClient.exe
- Size 70KB
- Sample260718-rch4msgv6y
- SHA256 cf27cbef76ddf911ee4cf376d1107d1f12a5d4b5e53f5505a73cde10aa88ee5f
Malware Config
Extracted
-
asyncrat
-
ThirdReichRAT
-
ThirdRAT
-
xXxaa-55919.portmap.host:55919
-
79I2guVhqez2
-
delay
3
-
install
false
-
install_folder
%AppData%
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
- Async RAT payload 2 IoCs
- Detects DonutLoader 2 IoCs
- Executes dropped EXE 1 IoCs
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Start PowerShell.
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry class 2 IoCs
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 20 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\ThirdClient.exe"C:\Users\Admin\AppData\Local\Temp\ThirdClient.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\uqccbo.exe"' & exit2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\uqccbo.exe"'3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\uqccbo.exe"C:\Users\Admin\AppData\Local\Temp\uqccbo.exe"4⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
-
-
-
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x2ec 0x4b81⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
__PSScriptPolicyTest_fyhccbz5.j4p.ps1
tmp9A09.tmp
tmp9A68.tmp
tmp9AA7.tmp
tmp9AE7.tmp
tmp9B36.tmp
uqccbo.exe
memory/2672-17-0x0000028CE7640000-0x0000028CE7650000-memory.dmp
memory/2672-25-0x0000028CCF020000-0x0000028CCF042000-memory.dmp
memory/2672-16-0x0000028CE7640000-0x0000028CE7650000-memory.dmp
memory/3268-7-0x0000000009240000-0x0000000009250000-memory.dmp
memory/3268-5-0x0000000009240000-0x0000000009250000-memory.dmp
memory/3268-13-0x00000000005A0000-0x00000000005AC000-memory.dmp
memory/3268-12-0x0000000008420000-0x0000000008496000-memory.dmp
memory/3268-8-0x0000000009240000-0x0000000009250000-memory.dmp
memory/3268-6-0x0000000009240000-0x0000000009250000-memory.dmp
memory/3268-1-0x0000000002980000-0x0000000002991000-memory.dmp
memory/3268-2-0x0000000009240000-0x0000000009250000-memory.dmp
memory/3268-3-0x0000000004330000-0x0000000004342000-memory.dmp
memory/3268-4-0x0000000009240000-0x0000000009250000-memory.dmp
memory/3268-14-0x0000000002D40000-0x0000000002D5E000-memory.dmp
memory/3816-31-0x0000000005090000-0x0000000005122000-memory.dmp
memory/3816-30-0x0000000000620000-0x000000000066E000-memory.dmp
memory/4720-0-0x0000000000530000-0x0000000000548000-memory.dmp