remcos | 396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe

Executes dropped EXE 5 IoCs

pid	Process
4364	._cache_396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
1864	Synaptics.exe
1660	Synaptics.exe
4984	Synaptics.exe
2208	._cache_Synaptics.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4172 set thread context of 5068	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 1864 set thread context of 4984	1864	Synaptics.exe	112

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 12 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	._cache_Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
4624	schtasks.exe
2368	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1892	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
3340	powershell.exe
1008	powershell.exe
4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
1008	powershell.exe
3340	powershell.exe
1864	Synaptics.exe
1864	Synaptics.exe
1864	Synaptics.exe
1864	Synaptics.exe
1864	Synaptics.exe
1864	Synaptics.exe
1168	powershell.exe
4368	powershell.exe
1864	Synaptics.exe
1864	Synaptics.exe
1864	Synaptics.exe
4368	powershell.exe
1168	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
Token: SeDebugPrivilege	3340	powershell.exe
Token: SeDebugPrivilege	1008	powershell.exe
Token: SeDebugPrivilege	1864	Synaptics.exe
Token: SeDebugPrivilege	4368	powershell.exe
Token: SeDebugPrivilege	1168	powershell.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4364	._cache_396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 4172 wrote to memory of 3340	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	94
PID 4172 wrote to memory of 3340	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	94
PID 4172 wrote to memory of 3340	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	94
PID 4172 wrote to memory of 1008	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	96
PID 4172 wrote to memory of 1008	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	96
PID 4172 wrote to memory of 1008	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	96
PID 4172 wrote to memory of 4624	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	98
PID 4172 wrote to memory of 4624	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	98
PID 4172 wrote to memory of 4624	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	98
PID 4172 wrote to memory of 5068	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 4172 wrote to memory of 5068	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 4172 wrote to memory of 5068	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 4172 wrote to memory of 5068	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 4172 wrote to memory of 5068	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 4172 wrote to memory of 5068	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 4172 wrote to memory of 5068	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 4172 wrote to memory of 5068	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 4172 wrote to memory of 5068	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 4172 wrote to memory of 5068	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 4172 wrote to memory of 5068	4172	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 5068 wrote to memory of 4364	5068	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	101
PID 5068 wrote to memory of 4364	5068	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	101
PID 5068 wrote to memory of 4364	5068	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	101
PID 5068 wrote to memory of 1864	5068	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	102
PID 5068 wrote to memory of 1864	5068	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	102
PID 5068 wrote to memory of 1864	5068	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	102
PID 1864 wrote to memory of 4368	1864	Synaptics.exe	105
PID 1864 wrote to memory of 4368	1864	Synaptics.exe	105
PID 1864 wrote to memory of 4368	1864	Synaptics.exe	105
PID 1864 wrote to memory of 1168	1864	Synaptics.exe	107
PID 1864 wrote to memory of 1168	1864	Synaptics.exe	107
PID 1864 wrote to memory of 1168	1864	Synaptics.exe	107
PID 1864 wrote to memory of 2368	1864	Synaptics.exe	109
PID 1864 wrote to memory of 2368	1864	Synaptics.exe	109
PID 1864 wrote to memory of 2368	1864	Synaptics.exe	109
PID 1864 wrote to memory of 1660	1864	Synaptics.exe	111
PID 1864 wrote to memory of 1660	1864	Synaptics.exe	111
PID 1864 wrote to memory of 1660	1864	Synaptics.exe	111
PID 1864 wrote to memory of 4984	1864	Synaptics.exe	112
PID 1864 wrote to memory of 4984	1864	Synaptics.exe	112
PID 1864 wrote to memory of 4984	1864	Synaptics.exe	112
PID 1864 wrote to memory of 4984	1864	Synaptics.exe	112
PID 1864 wrote to memory of 4984	1864	Synaptics.exe	112
PID 1864 wrote to memory of 4984	1864	Synaptics.exe	112
PID 1864 wrote to memory of 4984	1864	Synaptics.exe	112
PID 1864 wrote to memory of 4984	1864	Synaptics.exe	112
PID 1864 wrote to memory of 4984	1864	Synaptics.exe	112
PID 1864 wrote to memory of 4984	1864	Synaptics.exe	112
PID 1864 wrote to memory of 4984	1864	Synaptics.exe	112
PID 4984 wrote to memory of 2208	4984	Synaptics.exe	113
PID 4984 wrote to memory of 2208	4984	Synaptics.exe	113
PID 4984 wrote to memory of 2208	4984	Synaptics.exe	113

C:\Users\Admin\AppData\Local\Temp\396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
"C:\Users\Admin\AppData\Local\Temp\396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4172
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3340
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SBYYcyqg.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1008
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SBYYcyqg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC757.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4624
- C:\Users\Admin\AppData\Local\Temp\396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
  "C:\Users\Admin\AppData\Local\Temp\396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:5068
- - C:\Users\Admin\AppData\Local\Temp\._cache_396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:4364
- - C:\ProgramData\Synaptics\Synaptics.exe
    "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1864
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\ProgramData\Synaptics\Synaptics.exe"
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4368
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SBYYcyqg.exe"
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1168
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SBYYcyqg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp24C9.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2368
  - - C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe"
      4⤵
      Executes dropped EXE
      PID:1660
  - - C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Modifies registry class
      Suspicious use of WriteProcessMemory
      PID:4984
    - - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
        
        "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:2208

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

System Information Discovery