remcos | 76868bbe576d41f1654395768f1de4adf0139d7417e0b5785de8d258baeebaab

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 5 IoCs

pid	Process
4796	._cache_396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
2088	Synaptics.exe
1896	Synaptics.exe
4364	Synaptics.exe
4232	._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 4904 set thread context of 3432	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	99
PID 2088 set thread context of 4364	2088	Synaptics.exe	111

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	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	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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	Synaptics.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	._cache_Synaptics.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
1100	schtasks.exe
4560	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1028	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
2484	powershell.exe
5024	powershell.exe
5024	powershell.exe
2484	powershell.exe
4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
2088	Synaptics.exe
2088	Synaptics.exe
2088	Synaptics.exe
2088	Synaptics.exe
2088	Synaptics.exe
2088	Synaptics.exe
868	powershell.exe
1900	powershell.exe
2088	Synaptics.exe
2088	Synaptics.exe
2088	Synaptics.exe
1900	powershell.exe
868	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
Token: SeDebugPrivilege	5024	powershell.exe
Token: SeDebugPrivilege	2484	powershell.exe
Token: SeDebugPrivilege	2088	Synaptics.exe
Token: SeDebugPrivilege	1900	powershell.exe
Token: SeDebugPrivilege	868	powershell.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
4796	._cache_396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE
1028	EXCEL.EXE

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 2484	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	93
PID 4904 wrote to memory of 2484	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	93
PID 4904 wrote to memory of 2484	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	93
PID 4904 wrote to memory of 5024	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	95
PID 4904 wrote to memory of 5024	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	95
PID 4904 wrote to memory of 5024	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	95
PID 4904 wrote to memory of 1100	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	97
PID 4904 wrote to memory of 1100	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	97
PID 4904 wrote to memory of 1100	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	97
PID 4904 wrote to memory of 3432	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	99
PID 4904 wrote to memory of 3432	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	99
PID 4904 wrote to memory of 3432	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	99
PID 4904 wrote to memory of 3432	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	99
PID 4904 wrote to memory of 3432	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	99
PID 4904 wrote to memory of 3432	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	99
PID 4904 wrote to memory of 3432	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	99
PID 4904 wrote to memory of 3432	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	99
PID 4904 wrote to memory of 3432	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	99
PID 4904 wrote to memory of 3432	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	99
PID 4904 wrote to memory of 3432	4904	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	99
PID 3432 wrote to memory of 4796	3432	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 3432 wrote to memory of 4796	3432	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 3432 wrote to memory of 4796	3432	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	100
PID 3432 wrote to memory of 2088	3432	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	101
PID 3432 wrote to memory of 2088	3432	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	101
PID 3432 wrote to memory of 2088	3432	396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe	101
PID 2088 wrote to memory of 1900	2088	Synaptics.exe	104
PID 2088 wrote to memory of 1900	2088	Synaptics.exe	104
PID 2088 wrote to memory of 1900	2088	Synaptics.exe	104
PID 2088 wrote to memory of 868	2088	Synaptics.exe	106
PID 2088 wrote to memory of 868	2088	Synaptics.exe	106
PID 2088 wrote to memory of 868	2088	Synaptics.exe	106
PID 2088 wrote to memory of 4560	2088	Synaptics.exe	108
PID 2088 wrote to memory of 4560	2088	Synaptics.exe	108
PID 2088 wrote to memory of 4560	2088	Synaptics.exe	108
PID 2088 wrote to memory of 1896	2088	Synaptics.exe	110
PID 2088 wrote to memory of 1896	2088	Synaptics.exe	110
PID 2088 wrote to memory of 1896	2088	Synaptics.exe	110
PID 2088 wrote to memory of 4364	2088	Synaptics.exe	111
PID 2088 wrote to memory of 4364	2088	Synaptics.exe	111
PID 2088 wrote to memory of 4364	2088	Synaptics.exe	111
PID 2088 wrote to memory of 4364	2088	Synaptics.exe	111
PID 2088 wrote to memory of 4364	2088	Synaptics.exe	111
PID 2088 wrote to memory of 4364	2088	Synaptics.exe	111
PID 2088 wrote to memory of 4364	2088	Synaptics.exe	111
PID 2088 wrote to memory of 4364	2088	Synaptics.exe	111
PID 2088 wrote to memory of 4364	2088	Synaptics.exe	111
PID 2088 wrote to memory of 4364	2088	Synaptics.exe	111
PID 2088 wrote to memory of 4364	2088	Synaptics.exe	111
PID 4364 wrote to memory of 4232	4364	Synaptics.exe	112
PID 4364 wrote to memory of 4232	4364	Synaptics.exe	112
PID 4364 wrote to memory of 4232	4364	Synaptics.exe	112

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:4904
- 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:2484
- 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:5024
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SBYYcyqg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEB1.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1100
- 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:3432
- - 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:4796
- - 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:2088
  - - 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:1900
  - - 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:868
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SBYYcyqg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp69D1.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:4560
  - - C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe"
      4⤵
      Executes dropped EXE
      PID:1896
  - - 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:4364
    - - 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:4232

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:1028

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