remcos | 53672acf950da3cee20f11595a35afbb3840c324ad2223552b282793e23c7f8f

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	55d8d7ede1e3f2f0e5137e4199b182c0N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	55d8d7ede1e3f2f0e5137e4199b182c0N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 5 IoCs

pid	Process
1856	._cache_55d8d7ede1e3f2f0e5137e4199b182c0N.exe
768	Synaptics.exe
4464	Synaptics.exe
3512	Synaptics.exe
3592	._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"	55d8d7ede1e3f2f0e5137e4199b182c0N.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3696 set thread context of 2444	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	100
PID 768 set thread context of 4464	768	Synaptics.exe	113

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	55d8d7ede1e3f2f0e5137e4199b182c0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_55d8d7ede1e3f2f0e5137e4199b182c0N.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	55d8d7ede1e3f2f0e5137e4199b182c0N.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	powershell.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

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

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	55d8d7ede1e3f2f0e5137e4199b182c0N.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
4852	schtasks.exe
1316	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1012	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe
3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe
3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe
3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe
3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe
3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe
1020	powershell.exe
3740	powershell.exe
3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe
1020	powershell.exe
3740	powershell.exe
768	Synaptics.exe
768	Synaptics.exe
768	Synaptics.exe
768	Synaptics.exe
768	Synaptics.exe
768	Synaptics.exe
1960	powershell.exe
1960	powershell.exe
4572	powershell.exe
4572	powershell.exe
768	Synaptics.exe
768	Synaptics.exe
768	Synaptics.exe
768	Synaptics.exe
4572	powershell.exe
1960	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe
Token: SeDebugPrivilege	1020	powershell.exe
Token: SeDebugPrivilege	3740	powershell.exe
Token: SeDebugPrivilege	768	Synaptics.exe
Token: SeDebugPrivilege	4572	powershell.exe
Token: SeDebugPrivilege	1960	powershell.exe

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
1856	._cache_55d8d7ede1e3f2f0e5137e4199b182c0N.exe
1012	EXCEL.EXE
1012	EXCEL.EXE
1012	EXCEL.EXE
1012	EXCEL.EXE
1012	EXCEL.EXE
1012	EXCEL.EXE
1012	EXCEL.EXE
1012	EXCEL.EXE

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 3696 wrote to memory of 1020	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	94
PID 3696 wrote to memory of 1020	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	94
PID 3696 wrote to memory of 1020	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	94
PID 3696 wrote to memory of 3740	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	96
PID 3696 wrote to memory of 3740	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	96
PID 3696 wrote to memory of 3740	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	96
PID 3696 wrote to memory of 4852	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	98
PID 3696 wrote to memory of 4852	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	98
PID 3696 wrote to memory of 4852	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	98
PID 3696 wrote to memory of 2444	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	100
PID 3696 wrote to memory of 2444	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	100
PID 3696 wrote to memory of 2444	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	100
PID 3696 wrote to memory of 2444	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	100
PID 3696 wrote to memory of 2444	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	100
PID 3696 wrote to memory of 2444	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	100
PID 3696 wrote to memory of 2444	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	100
PID 3696 wrote to memory of 2444	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	100
PID 3696 wrote to memory of 2444	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	100
PID 3696 wrote to memory of 2444	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	100
PID 3696 wrote to memory of 2444	3696	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	100
PID 2444 wrote to memory of 1856	2444	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	101
PID 2444 wrote to memory of 1856	2444	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	101
PID 2444 wrote to memory of 1856	2444	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	101
PID 2444 wrote to memory of 768	2444	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	102
PID 2444 wrote to memory of 768	2444	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	102
PID 2444 wrote to memory of 768	2444	55d8d7ede1e3f2f0e5137e4199b182c0N.exe	102
PID 768 wrote to memory of 4572	768	Synaptics.exe	106
PID 768 wrote to memory of 4572	768	Synaptics.exe	106
PID 768 wrote to memory of 4572	768	Synaptics.exe	106
PID 768 wrote to memory of 1960	768	Synaptics.exe	108
PID 768 wrote to memory of 1960	768	Synaptics.exe	108
PID 768 wrote to memory of 1960	768	Synaptics.exe	108
PID 768 wrote to memory of 1316	768	Synaptics.exe	110
PID 768 wrote to memory of 1316	768	Synaptics.exe	110
PID 768 wrote to memory of 1316	768	Synaptics.exe	110
PID 768 wrote to memory of 3512	768	Synaptics.exe	112
PID 768 wrote to memory of 3512	768	Synaptics.exe	112
PID 768 wrote to memory of 3512	768	Synaptics.exe	112
PID 768 wrote to memory of 4464	768	Synaptics.exe	113
PID 768 wrote to memory of 4464	768	Synaptics.exe	113
PID 768 wrote to memory of 4464	768	Synaptics.exe	113
PID 768 wrote to memory of 4464	768	Synaptics.exe	113
PID 768 wrote to memory of 4464	768	Synaptics.exe	113
PID 768 wrote to memory of 4464	768	Synaptics.exe	113
PID 768 wrote to memory of 4464	768	Synaptics.exe	113
PID 768 wrote to memory of 4464	768	Synaptics.exe	113
PID 768 wrote to memory of 4464	768	Synaptics.exe	113
PID 768 wrote to memory of 4464	768	Synaptics.exe	113
PID 768 wrote to memory of 4464	768	Synaptics.exe	113
PID 4464 wrote to memory of 3592	4464	Synaptics.exe	114
PID 4464 wrote to memory of 3592	4464	Synaptics.exe	114
PID 4464 wrote to memory of 3592	4464	Synaptics.exe	114

C:\Users\Admin\AppData\Local\Temp\55d8d7ede1e3f2f0e5137e4199b182c0N.exe
"C:\Users\Admin\AppData\Local\Temp\55d8d7ede1e3f2f0e5137e4199b182c0N.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:3696
- 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\55d8d7ede1e3f2f0e5137e4199b182c0N.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1020
- 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:3740
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SBYYcyqg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF676.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4852
- C:\Users\Admin\AppData\Local\Temp\55d8d7ede1e3f2f0e5137e4199b182c0N.exe
  "C:\Users\Admin\AppData\Local\Temp\55d8d7ede1e3f2f0e5137e4199b182c0N.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:2444
- - C:\Users\Admin\AppData\Local\Temp\._cache_55d8d7ede1e3f2f0e5137e4199b182c0N.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_55d8d7ede1e3f2f0e5137e4199b182c0N.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:1856
- - 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:768
  - - 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:4572
  - - 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:1960
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SBYYcyqg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5270.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1316
  - - C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe"
      4⤵
      Executes dropped EXE
      PID:3512
  - - 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:4464
    - - 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:3592

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:1012

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