remcos | 986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe

Executes dropped EXE 6 IoCs

pid	Process
4024	._cache_986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
3156	Synaptics.exe
4772	Synaptics.exe
4084	Synaptics.exe
4108	Synaptics.exe
2704	._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"	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4188 set thread context of 380	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	104
PID 3156 set thread context of 4108	3156	Synaptics.exe	119

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	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.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	._cache_Synaptics.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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\	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.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
3084	schtasks.exe
5092	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3048	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
4716	powershell.exe
4540	powershell.exe
4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
4716	powershell.exe
4540	powershell.exe
3156	Synaptics.exe
3156	Synaptics.exe
3156	Synaptics.exe
3156	Synaptics.exe
3308	powershell.exe
3156	Synaptics.exe
3156	Synaptics.exe
4908	powershell.exe
3156	Synaptics.exe
3156	Synaptics.exe
3156	Synaptics.exe
3308	powershell.exe
4908	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
Token: SeDebugPrivilege	4540	powershell.exe
Token: SeDebugPrivilege	4716	powershell.exe
Token: SeDebugPrivilege	3156	Synaptics.exe
Token: SeDebugPrivilege	3308	powershell.exe
Token: SeDebugPrivilege	4908	powershell.exe

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
4024	._cache_986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
3048	EXCEL.EXE
3048	EXCEL.EXE
3048	EXCEL.EXE
3048	EXCEL.EXE
3048	EXCEL.EXE
3048	EXCEL.EXE
3048	EXCEL.EXE
3048	EXCEL.EXE

Suspicious use of WriteProcessMemory 55 IoCs

description	pid	Process	procid_target
PID 4188 wrote to memory of 4540	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	98
PID 4188 wrote to memory of 4540	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	98
PID 4188 wrote to memory of 4540	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	98
PID 4188 wrote to memory of 4716	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	100
PID 4188 wrote to memory of 4716	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	100
PID 4188 wrote to memory of 4716	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	100
PID 4188 wrote to memory of 3084	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	102
PID 4188 wrote to memory of 3084	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	102
PID 4188 wrote to memory of 3084	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	102
PID 4188 wrote to memory of 380	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	104
PID 4188 wrote to memory of 380	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	104
PID 4188 wrote to memory of 380	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	104
PID 4188 wrote to memory of 380	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	104
PID 4188 wrote to memory of 380	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	104
PID 4188 wrote to memory of 380	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	104
PID 4188 wrote to memory of 380	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	104
PID 4188 wrote to memory of 380	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	104
PID 4188 wrote to memory of 380	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	104
PID 4188 wrote to memory of 380	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	104
PID 4188 wrote to memory of 380	4188	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	104
PID 380 wrote to memory of 4024	380	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	105
PID 380 wrote to memory of 4024	380	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	105
PID 380 wrote to memory of 4024	380	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	105
PID 380 wrote to memory of 3156	380	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	106
PID 380 wrote to memory of 3156	380	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	106
PID 380 wrote to memory of 3156	380	986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe	106
PID 3156 wrote to memory of 3308	3156	Synaptics.exe	111
PID 3156 wrote to memory of 3308	3156	Synaptics.exe	111
PID 3156 wrote to memory of 3308	3156	Synaptics.exe	111
PID 3156 wrote to memory of 4908	3156	Synaptics.exe	113
PID 3156 wrote to memory of 4908	3156	Synaptics.exe	113
PID 3156 wrote to memory of 4908	3156	Synaptics.exe	113
PID 3156 wrote to memory of 5092	3156	Synaptics.exe	115
PID 3156 wrote to memory of 5092	3156	Synaptics.exe	115
PID 3156 wrote to memory of 5092	3156	Synaptics.exe	115
PID 3156 wrote to memory of 4772	3156	Synaptics.exe	117
PID 3156 wrote to memory of 4772	3156	Synaptics.exe	117
PID 3156 wrote to memory of 4772	3156	Synaptics.exe	117
PID 3156 wrote to memory of 4084	3156	Synaptics.exe	118
PID 3156 wrote to memory of 4084	3156	Synaptics.exe	118
PID 3156 wrote to memory of 4084	3156	Synaptics.exe	118
PID 3156 wrote to memory of 4108	3156	Synaptics.exe	119
PID 3156 wrote to memory of 4108	3156	Synaptics.exe	119
PID 3156 wrote to memory of 4108	3156	Synaptics.exe	119
PID 3156 wrote to memory of 4108	3156	Synaptics.exe	119
PID 3156 wrote to memory of 4108	3156	Synaptics.exe	119
PID 3156 wrote to memory of 4108	3156	Synaptics.exe	119
PID 3156 wrote to memory of 4108	3156	Synaptics.exe	119
PID 3156 wrote to memory of 4108	3156	Synaptics.exe	119
PID 3156 wrote to memory of 4108	3156	Synaptics.exe	119
PID 3156 wrote to memory of 4108	3156	Synaptics.exe	119
PID 3156 wrote to memory of 4108	3156	Synaptics.exe	119
PID 4108 wrote to memory of 2704	4108	Synaptics.exe	120
PID 4108 wrote to memory of 2704	4108	Synaptics.exe	120
PID 4108 wrote to memory of 2704	4108	Synaptics.exe	120

C:\Users\Admin\AppData\Local\Temp\986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
"C:\Users\Admin\AppData\Local\Temp\986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.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:4188
- 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\986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4540
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BLznCuyzwk.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4716
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BLznCuyzwk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp77D.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3084
- C:\Users\Admin\AppData\Local\Temp\986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
  "C:\Users\Admin\AppData\Local\Temp\986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.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:380
- - C:\Users\Admin\AppData\Local\Temp\._cache_986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_986ecce2a6a989bacd39a4c89770ff42976919b2884d3e68e0ef2af2974d3383.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:4024
- - 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:3156
  - - 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:3308
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BLznCuyzwk.exe"
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4908
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BLznCuyzwk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5F51.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:5092
  - - C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe"
      4⤵
      Executes dropped EXE
      PID:4772
  - - C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe"
      4⤵
      Executes dropped EXE
      PID:4084
  - - 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:4108
    - - 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:2704

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:3048

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