remcos | 0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

Processes:

0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

Windows security bypass 2 TTPs 2 IoCs

Disable or Modify Tools

Modify Registry

Processes:

0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe = "0"	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

4128 powershell.exe

pid	process
4128	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

Processes:

0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

Windows security modification 2 TTPs 3 IoCs

Disable or Modify Tools

Modify Registry

Processes:

0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe = "0"	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

System Information Discovery

T1082

Processes:

0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

description	pid	process	target process
PID 4024 set thread context of 4416	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe

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 1 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

Processes:

ngen.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ngen.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

4128 powershell.exe
4128 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4128 powershell.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ngen.exe

pid	process
4128	powershell.exe
4128	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4128	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

description	pid	process	target process
PID 4024 wrote to memory of 4128	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	powershell.exe
PID 4024 wrote to memory of 4128	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	powershell.exe
PID 4024 wrote to memory of 4416	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe
PID 4024 wrote to memory of 4416	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe
PID 4024 wrote to memory of 4416	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe
PID 4024 wrote to memory of 4416	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe
PID 4024 wrote to memory of 4416	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe
PID 4024 wrote to memory of 4416	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe
PID 4024 wrote to memory of 4416	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe
PID 4024 wrote to memory of 4416	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe
PID 4024 wrote to memory of 4416	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe
PID 4024 wrote to memory of 4416	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe
PID 4024 wrote to memory of 2588	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe
PID 4024 wrote to memory of 2588	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe
PID 4024 wrote to memory of 2588	4024	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe	ngen.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

Processes:

0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe

C:\Users\Admin\AppData\Local\Temp\0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe
"C:\Users\Admin\AppData\Local\Temp\0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.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:4024
- 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\0e248ef8cd0d758d18a56d6af3b577628e428954059e666641aa4fe1ee407c8d.exe" -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4128
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4416
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe"
  2⤵
  PID:2588

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