remcos | 544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54

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"	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.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	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe = "0"	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.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

pid	Process
968	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.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	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe = "0"	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.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	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1384 set thread context of 2956	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	94

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmplayer.exe

Runs regedit.exe 1 IoCs

pid	Process
860	regedit.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
968	powershell.exe
968	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe
Token: SeDebugPrivilege	968	powershell.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 1384 wrote to memory of 968	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	87
PID 1384 wrote to memory of 968	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	87
PID 1384 wrote to memory of 3700	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	89
PID 1384 wrote to memory of 3700	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	89
PID 1384 wrote to memory of 3700	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	89
PID 1384 wrote to memory of 3700	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	89
PID 1384 wrote to memory of 3700	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	89
PID 1384 wrote to memory of 3700	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	89
PID 1384 wrote to memory of 3700	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	89
PID 1384 wrote to memory of 3700	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	89
PID 1384 wrote to memory of 3376	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	91
PID 1384 wrote to memory of 3376	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	91
PID 1384 wrote to memory of 3376	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	91
PID 1384 wrote to memory of 860	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	92
PID 1384 wrote to memory of 860	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	92
PID 1384 wrote to memory of 860	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	92
PID 1384 wrote to memory of 860	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	92
PID 1384 wrote to memory of 860	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	92
PID 1384 wrote to memory of 860	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	92
PID 1384 wrote to memory of 860	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	92
PID 1384 wrote to memory of 860	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	92
PID 1384 wrote to memory of 2136	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	93
PID 1384 wrote to memory of 2136	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	93
PID 1384 wrote to memory of 2136	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	93
PID 1384 wrote to memory of 2136	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	93
PID 1384 wrote to memory of 2136	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	93
PID 1384 wrote to memory of 2136	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	93
PID 1384 wrote to memory of 2136	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	93
PID 1384 wrote to memory of 2136	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	93
PID 1384 wrote to memory of 2956	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	94
PID 1384 wrote to memory of 2956	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	94
PID 1384 wrote to memory of 2956	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	94
PID 1384 wrote to memory of 2956	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	94
PID 1384 wrote to memory of 2956	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	94
PID 1384 wrote to memory of 2956	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	94
PID 1384 wrote to memory of 2956	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	94
PID 1384 wrote to memory of 2956	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	94
PID 1384 wrote to memory of 2956	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	94
PID 1384 wrote to memory of 2956	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	94
PID 1384 wrote to memory of 2800	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	95
PID 1384 wrote to memory of 2800	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	95
PID 1384 wrote to memory of 2800	1384	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe	95

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"	544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe

C:\Users\Admin\AppData\Local\Temp\544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe
"C:\Users\Admin\AppData\Local\Temp\544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.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 AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1384
- 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\544116117da37bf986d04bf94b6da210d9062ea46696e37ee5dd24ea6bdb3b54.exe" -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:968
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe"
  2⤵
  PID:3700
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
  2⤵
  PID:3376
- C:\Windows\regedit.exe
  "C:\Windows\regedit.exe"
  2⤵
  - Runs regedit.exe
  PID:860
- C:\Windows\System32\svchost.exe
  "C:\Windows\System32\svchost.exe"
  2⤵
  PID:2136
- C:\Program Files (x86)\Windows Media Player\wmplayer.exe
  "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2956
- C:\Program Files (x86)\Windows Media Player\wmplayer.exe
  "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
  2⤵
  PID:2800

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