asyncrat | 0e43ddda43c57d175c94fb57d1e8501d27d8c54c02c5ebba43f01516eadeec3c

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Payment-Order #24560274 for 8,380 USD.exe

Windows security bypass 2 TTPs 2 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	Payment-Order #24560274 for 8,380 USD.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\Payment-Order #24560274 for 8,380 USD.exe = "0"	Payment-Order #24560274 for 8,380 USD.exe

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2044	powershell.exe
4952	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	Payment-Order #24560274 for 8,380 USD.exe

Executes dropped EXE 1 IoCs

pid	Process
2656	mjzsfy.exe

Windows security modification 2 TTPs 3 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	Payment-Order #24560274 for 8,380 USD.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions	Payment-Order #24560274 for 8,380 USD.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\Payment-Order #24560274 for 8,380 USD.exe = "0"	Payment-Order #24560274 for 8,380 USD.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Payment-Order #24560274 for 8,380 USD.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Payment-Order #24560274 for 8,380 USD.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1600 set thread context of 2692	1600	Payment-Order #24560274 for 8,380 USD.exe	85
PID 2656 set thread context of 3428	2656	mjzsfy.exe	109

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AddInProcess32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvcs.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2044	powershell.exe
2044	powershell.exe
4952	powershell.exe
4952	powershell.exe
2692	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2044	powershell.exe
Token: SeDebugPrivilege	2692	AddInProcess32.exe
Token: SeDebugPrivilege	4952	powershell.exe
Token: SeDebugPrivilege	3428	regsvcs.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 2044	1600	Payment-Order #24560274 for 8,380 USD.exe	83
PID 1600 wrote to memory of 2044	1600	Payment-Order #24560274 for 8,380 USD.exe	83
PID 1600 wrote to memory of 2692	1600	Payment-Order #24560274 for 8,380 USD.exe	85
PID 1600 wrote to memory of 2692	1600	Payment-Order #24560274 for 8,380 USD.exe	85
PID 1600 wrote to memory of 2692	1600	Payment-Order #24560274 for 8,380 USD.exe	85
PID 1600 wrote to memory of 2692	1600	Payment-Order #24560274 for 8,380 USD.exe	85
PID 1600 wrote to memory of 2692	1600	Payment-Order #24560274 for 8,380 USD.exe	85
PID 1600 wrote to memory of 2692	1600	Payment-Order #24560274 for 8,380 USD.exe	85
PID 1600 wrote to memory of 2692	1600	Payment-Order #24560274 for 8,380 USD.exe	85
PID 1600 wrote to memory of 2692	1600	Payment-Order #24560274 for 8,380 USD.exe	85
PID 1600 wrote to memory of 3384	1600	Payment-Order #24560274 for 8,380 USD.exe	86
PID 1600 wrote to memory of 3384	1600	Payment-Order #24560274 for 8,380 USD.exe	86
PID 1600 wrote to memory of 3384	1600	Payment-Order #24560274 for 8,380 USD.exe	86
PID 2692 wrote to memory of 3064	2692	AddInProcess32.exe	105
PID 2692 wrote to memory of 3064	2692	AddInProcess32.exe	105
PID 2692 wrote to memory of 3064	2692	AddInProcess32.exe	105
PID 3064 wrote to memory of 4952	3064	cmd.exe	107
PID 3064 wrote to memory of 4952	3064	cmd.exe	107
PID 3064 wrote to memory of 4952	3064	cmd.exe	107
PID 4952 wrote to memory of 2656	4952	powershell.exe	108
PID 4952 wrote to memory of 2656	4952	powershell.exe	108
PID 2656 wrote to memory of 3428	2656	mjzsfy.exe	109
PID 2656 wrote to memory of 3428	2656	mjzsfy.exe	109
PID 2656 wrote to memory of 3428	2656	mjzsfy.exe	109
PID 2656 wrote to memory of 3428	2656	mjzsfy.exe	109
PID 2656 wrote to memory of 3428	2656	mjzsfy.exe	109
PID 2656 wrote to memory of 3428	2656	mjzsfy.exe	109
PID 2656 wrote to memory of 3428	2656	mjzsfy.exe	109
PID 2656 wrote to memory of 3428	2656	mjzsfy.exe	109
PID 2656 wrote to memory of 4332	2656	mjzsfy.exe	110
PID 2656 wrote to memory of 4332	2656	mjzsfy.exe	110
PID 2656 wrote to memory of 4332	2656	mjzsfy.exe	110

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Payment-Order #24560274 for 8,380 USD.exe

C:\Users\Admin\AppData\Local\Temp\Payment-Order #24560274 for 8,380 USD.exe
"C:\Users\Admin\AppData\Local\Temp\Payment-Order #24560274 for 8,380 USD.exe"
1⤵
- UAC bypass
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1600
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Payment-Order #24560274 for 8,380 USD.exe" -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2044
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2692
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\mjzsfy.exe"' & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3064
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\mjzsfy.exe"'
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4952
    - - C:\Users\Admin\AppData\Local\Temp\mjzsfy.exe
        
        "C:\Users\Admin\AppData\Local\Temp\mjzsfy.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:2656
      - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:3428
      - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
        6⤵
        
        PID:4332
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  PID:3384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry