Analysis
- max time kernel
148s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
31/08/2026, 00:10
General
- Target 103.exe
- Size 415KB
- Sample260831-aga56asdkf
- SHA256 9b1d38cd728ec1a478db668e86f7445ab5f0335b388feefc15502931cdcad704
Malware Config
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 1 IoCs
- Detects DonutLoader 1 IoCs
- Creates a file in the Startup directory 1 TTPs 2 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 2 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Using powershell.exe command.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 2 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.
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious use of AdjustPrivilegeToken 64 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\103.exe"C:\Users\Admin\AppData\Local\Temp\103.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Public\Documents\11.exe"C:\Users\Public\Documents\11.exe"2⤵
- Creates a file in the Startup directory
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c powershell -NoProfile -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\240696953.ps1"3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -NoProfile -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\240696953.ps1"4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Public\Documents\res\msword.exeC:\Users\Public\Documents\res\msword.exe1⤵
- Creates a file in the Startup directory
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c powershell -NoProfile -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\240708734.ps1"2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -NoProfile -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\240708734.ps1"3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Windows Command Shell
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Replay Monitor
Loading Replay Monitor...
Downloads
StartupProfileData-NonInteractive
240696953.ps1
__PSScriptPolicyTest_341z2rw0.yqe.ps1
cat_client_diag.log
cat_client_diag.log
cat_client_diag.log
cat_client_diag.log
WindowsSecurity.lnk
DataLogs.conf
11.exe
dbgeng.dll
png.dat
memory/1276-63-0x00000196FCAA0000-0x00000196FCB90000-memory.dmp
memory/1276-58-0x00000196FC790000-0x00000196FC842000-memory.dmp
memory/4536-31-0x000002DAD2AB0000-0x000002DAD2B62000-memory.dmp
memory/4536-41-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-26-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-29-0x000002DAD2A90000-0x000002DAD2AAE000-memory.dmp
memory/4536-30-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-32-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-24-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-33-0x000002DAD2880000-0x000002DAD288A000-memory.dmp
memory/4536-34-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-35-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-36-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-37-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-40-0x000002DAD2DF0000-0x000002DAD2E0E000-memory.dmp
memory/4536-25-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-43-0x000002DAD2DF0000-0x000002DAD2EE0000-memory.dmp
memory/4536-44-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-12-0x00007FF8EA99F000-0x00007FF8EA9A0000-memory.dmp
memory/4536-13-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-23-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-22-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-21-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-20-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-19-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-17-0x00007FF8EA810000-0x00007FF8EB1B4000-memory.dmp
memory/4536-16-0x000002DAD27D0000-0x000002DAD27F2000-memory.dmp
memory/5036-47-0x000001DDE7050000-0x000001DDE706A000-memory.dmp
memory/5036-46-0x000001DDE57B0000-0x000001DDE57CC000-memory.dmp
memory/5036-8-0x000001DDE5720000-0x000001DDE5721000-memory.dmp