remcos | 97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98

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

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\winslogon-BNBAGB = "\"C:\\Users\\Admin\\AppData\\Roaming\\winslogon\\winslogon.exe\""	winslogon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\winslogon-BNBAGB = "\"C:\\Users\\Admin\\AppData\\Roaming\\winslogon\\winslogon.exe\""	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	winslogon.exe

Executes dropped EXE 1 IoCs

pid	Process
2760	winslogon.exe

Loads dropped DLL 2 IoCs

pid	Process
2208	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe
2208	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\winslogon-BNBAGB = "\"C:\\Users\\Admin\\AppData\\Roaming\\winslogon\\winslogon.exe\""	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\winslogon-BNBAGB = "\"C:\\Users\\Admin\\AppData\\Roaming\\winslogon\\winslogon.exe\""	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\winslogon-BNBAGB = "\"C:\\Users\\Admin\\AppData\\Roaming\\winslogon\\winslogon.exe\""	winslogon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\winslogon-BNBAGB = "\"C:\\Users\\Admin\\AppData\\Roaming\\winslogon\\winslogon.exe\""	winslogon.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2760 set thread context of 3048	2760	winslogon.exe	37

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 6 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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winslogon.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry key 1 TTPs 2 IoCs

Modify Registry

pid	Process
2480	reg.exe
1508	reg.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2760	winslogon.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2760	winslogon.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2760	winslogon.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2316	2208	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe	30
PID 2208 wrote to memory of 2316	2208	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe	30
PID 2208 wrote to memory of 2316	2208	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe	30
PID 2208 wrote to memory of 2316	2208	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe	30
PID 2316 wrote to memory of 2480	2316	cmd.exe	32
PID 2316 wrote to memory of 2480	2316	cmd.exe	32
PID 2316 wrote to memory of 2480	2316	cmd.exe	32
PID 2316 wrote to memory of 2480	2316	cmd.exe	32
PID 2208 wrote to memory of 2760	2208	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe	33
PID 2208 wrote to memory of 2760	2208	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe	33
PID 2208 wrote to memory of 2760	2208	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe	33
PID 2208 wrote to memory of 2760	2208	97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe	33
PID 2760 wrote to memory of 2888	2760	winslogon.exe	34
PID 2760 wrote to memory of 2888	2760	winslogon.exe	34
PID 2760 wrote to memory of 2888	2760	winslogon.exe	34
PID 2760 wrote to memory of 2888	2760	winslogon.exe	34
PID 2888 wrote to memory of 1508	2888	cmd.exe	36
PID 2888 wrote to memory of 1508	2888	cmd.exe	36
PID 2888 wrote to memory of 1508	2888	cmd.exe	36
PID 2888 wrote to memory of 1508	2888	cmd.exe	36
PID 2760 wrote to memory of 3048	2760	winslogon.exe	37
PID 2760 wrote to memory of 3048	2760	winslogon.exe	37
PID 2760 wrote to memory of 3048	2760	winslogon.exe	37
PID 2760 wrote to memory of 3048	2760	winslogon.exe	37
PID 2760 wrote to memory of 3048	2760	winslogon.exe	37

C:\Users\Admin\AppData\Local\Temp\97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe
"C:\Users\Admin\AppData\Local\Temp\97495c8622198ded0c7900667e021c4d1aaac9e1ce7ed8c7bc3b213644304b98.exe"
1⤵
- Adds policy Run key to start application
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Windows\SysWOW64\cmd.exe
  /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2316
- - C:\Windows\SysWOW64\reg.exe
    C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
    3⤵
    - UAC bypass
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:2480
- C:\Users\Admin\AppData\Roaming\winslogon\winslogon.exe
  "C:\Users\Admin\AppData\Roaming\winslogon\winslogon.exe"
  2⤵
  - Adds policy Run key to start application
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Windows\SysWOW64\cmd.exe
    /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2888
  - - C:\Windows\SysWOW64\reg.exe
      C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
      4⤵
      UAC bypass
      System Location Discovery: System Language Discovery
      Modifies registry key
      PID:1508
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:3048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery