remcos | df025008bab8a9d1b780276526007d60abaafb894af2cca82bc633c715945ec5

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	444561befcef7bad6bb899304fb31524.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	444561befcef7bad6bb899304fb31524.exe

Executes dropped EXE 5 IoCs

pid	Process
3576	._cache_444561befcef7bad6bb899304fb31524.exe
4036	Synaptics.exe
4100	Synaptics.exe
5524	Synaptics.exe
5636	._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"	444561befcef7bad6bb899304fb31524.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5692 set thread context of 5176	5692	444561befcef7bad6bb899304fb31524.exe	100
PID 4036 set thread context of 5524	4036	Synaptics.exe	115

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	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	444561befcef7bad6bb899304fb31524.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	444561befcef7bad6bb899304fb31524.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_444561befcef7bad6bb899304fb31524.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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\	444561befcef7bad6bb899304fb31524.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
1196	schtasks.exe
3896	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
5372	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
5692	444561befcef7bad6bb899304fb31524.exe
5692	444561befcef7bad6bb899304fb31524.exe
5692	444561befcef7bad6bb899304fb31524.exe
5692	444561befcef7bad6bb899304fb31524.exe
4784	powershell.exe
5692	444561befcef7bad6bb899304fb31524.exe
2100	powershell.exe
5692	444561befcef7bad6bb899304fb31524.exe
5692	444561befcef7bad6bb899304fb31524.exe
5692	444561befcef7bad6bb899304fb31524.exe
5692	444561befcef7bad6bb899304fb31524.exe
4784	powershell.exe
2100	powershell.exe
4036	Synaptics.exe
4036	Synaptics.exe
4036	Synaptics.exe
4036	Synaptics.exe
4460	powershell.exe
4460	powershell.exe
4036	Synaptics.exe
4036	Synaptics.exe
2008	powershell.exe
2008	powershell.exe
4036	Synaptics.exe
4036	Synaptics.exe
4460	powershell.exe
2008	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	5692	444561befcef7bad6bb899304fb31524.exe
Token: SeDebugPrivilege	4784	powershell.exe
Token: SeDebugPrivilege	2100	powershell.exe
Token: SeDebugPrivilege	4036	Synaptics.exe
Token: SeDebugPrivilege	4460	powershell.exe
Token: SeDebugPrivilege	2008	powershell.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3576	._cache_444561befcef7bad6bb899304fb31524.exe
5372	EXCEL.EXE
5372	EXCEL.EXE
5372	EXCEL.EXE
5372	EXCEL.EXE

Suspicious use of WriteProcessMemory 55 IoCs

description	pid	Process	procid_target
PID 5692 wrote to memory of 4784	5692	444561befcef7bad6bb899304fb31524.exe	93
PID 5692 wrote to memory of 4784	5692	444561befcef7bad6bb899304fb31524.exe	93
PID 5692 wrote to memory of 4784	5692	444561befcef7bad6bb899304fb31524.exe	93
PID 5692 wrote to memory of 2100	5692	444561befcef7bad6bb899304fb31524.exe	95
PID 5692 wrote to memory of 2100	5692	444561befcef7bad6bb899304fb31524.exe	95
PID 5692 wrote to memory of 2100	5692	444561befcef7bad6bb899304fb31524.exe	95
PID 5692 wrote to memory of 1196	5692	444561befcef7bad6bb899304fb31524.exe	96
PID 5692 wrote to memory of 1196	5692	444561befcef7bad6bb899304fb31524.exe	96
PID 5692 wrote to memory of 1196	5692	444561befcef7bad6bb899304fb31524.exe	96
PID 5692 wrote to memory of 2180	5692	444561befcef7bad6bb899304fb31524.exe	99
PID 5692 wrote to memory of 2180	5692	444561befcef7bad6bb899304fb31524.exe	99
PID 5692 wrote to memory of 2180	5692	444561befcef7bad6bb899304fb31524.exe	99
PID 5692 wrote to memory of 5176	5692	444561befcef7bad6bb899304fb31524.exe	100
PID 5692 wrote to memory of 5176	5692	444561befcef7bad6bb899304fb31524.exe	100
PID 5692 wrote to memory of 5176	5692	444561befcef7bad6bb899304fb31524.exe	100
PID 5692 wrote to memory of 5176	5692	444561befcef7bad6bb899304fb31524.exe	100
PID 5692 wrote to memory of 5176	5692	444561befcef7bad6bb899304fb31524.exe	100
PID 5692 wrote to memory of 5176	5692	444561befcef7bad6bb899304fb31524.exe	100
PID 5692 wrote to memory of 5176	5692	444561befcef7bad6bb899304fb31524.exe	100
PID 5692 wrote to memory of 5176	5692	444561befcef7bad6bb899304fb31524.exe	100
PID 5692 wrote to memory of 5176	5692	444561befcef7bad6bb899304fb31524.exe	100
PID 5692 wrote to memory of 5176	5692	444561befcef7bad6bb899304fb31524.exe	100
PID 5692 wrote to memory of 5176	5692	444561befcef7bad6bb899304fb31524.exe	100
PID 5176 wrote to memory of 3576	5176	444561befcef7bad6bb899304fb31524.exe	101
PID 5176 wrote to memory of 3576	5176	444561befcef7bad6bb899304fb31524.exe	101
PID 5176 wrote to memory of 3576	5176	444561befcef7bad6bb899304fb31524.exe	101
PID 5176 wrote to memory of 4036	5176	444561befcef7bad6bb899304fb31524.exe	102
PID 5176 wrote to memory of 4036	5176	444561befcef7bad6bb899304fb31524.exe	102
PID 5176 wrote to memory of 4036	5176	444561befcef7bad6bb899304fb31524.exe	102
PID 4036 wrote to memory of 4460	4036	Synaptics.exe	108
PID 4036 wrote to memory of 4460	4036	Synaptics.exe	108
PID 4036 wrote to memory of 4460	4036	Synaptics.exe	108
PID 4036 wrote to memory of 2008	4036	Synaptics.exe	110
PID 4036 wrote to memory of 2008	4036	Synaptics.exe	110
PID 4036 wrote to memory of 2008	4036	Synaptics.exe	110
PID 4036 wrote to memory of 3896	4036	Synaptics.exe	111
PID 4036 wrote to memory of 3896	4036	Synaptics.exe	111
PID 4036 wrote to memory of 3896	4036	Synaptics.exe	111
PID 4036 wrote to memory of 4100	4036	Synaptics.exe	114
PID 4036 wrote to memory of 4100	4036	Synaptics.exe	114
PID 4036 wrote to memory of 4100	4036	Synaptics.exe	114
PID 4036 wrote to memory of 5524	4036	Synaptics.exe	115
PID 4036 wrote to memory of 5524	4036	Synaptics.exe	115
PID 4036 wrote to memory of 5524	4036	Synaptics.exe	115
PID 4036 wrote to memory of 5524	4036	Synaptics.exe	115
PID 4036 wrote to memory of 5524	4036	Synaptics.exe	115
PID 4036 wrote to memory of 5524	4036	Synaptics.exe	115
PID 4036 wrote to memory of 5524	4036	Synaptics.exe	115
PID 4036 wrote to memory of 5524	4036	Synaptics.exe	115
PID 4036 wrote to memory of 5524	4036	Synaptics.exe	115
PID 4036 wrote to memory of 5524	4036	Synaptics.exe	115
PID 4036 wrote to memory of 5524	4036	Synaptics.exe	115
PID 5524 wrote to memory of 5636	5524	Synaptics.exe	116
PID 5524 wrote to memory of 5636	5524	Synaptics.exe	116
PID 5524 wrote to memory of 5636	5524	Synaptics.exe	116

C:\Users\Admin\AppData\Local\Temp\444561befcef7bad6bb899304fb31524.exe
"C:\Users\Admin\AppData\Local\Temp\444561befcef7bad6bb899304fb31524.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:5692
- 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\444561befcef7bad6bb899304fb31524.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4784
- 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:2100
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BLznCuyzwk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA5C5.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1196
- C:\Users\Admin\AppData\Local\Temp\444561befcef7bad6bb899304fb31524.exe
  "C:\Users\Admin\AppData\Local\Temp\444561befcef7bad6bb899304fb31524.exe"
  2⤵
  PID:2180
- C:\Users\Admin\AppData\Local\Temp\444561befcef7bad6bb899304fb31524.exe
  "C:\Users\Admin\AppData\Local\Temp\444561befcef7bad6bb899304fb31524.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:5176
- - C:\Users\Admin\AppData\Local\Temp\._cache_444561befcef7bad6bb899304fb31524.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_444561befcef7bad6bb899304fb31524.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:3576
- - 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:4036
  - - 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:4460
  - - 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:2008
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BLznCuyzwk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp134.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:3896
  - - C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe"
      4⤵
      Executes dropped EXE
      PID:4100
  - - 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:5524
    - - 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:5636

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:5372

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