remcos | b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe

Executes dropped EXE 5 IoCs

pid	Process
556	._cache_b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
2876	Synaptics.exe
5076	Synaptics.exe
664	Synaptics.exe
1392	._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"	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4828 set thread context of 3812	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	101
PID 2876 set thread context of 664	2876	Synaptics.exe	114

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_b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.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	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.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

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 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\	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.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
4688	schtasks.exe
1292	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1396	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
2652	powershell.exe
2652	powershell.exe
2884	powershell.exe
2884	powershell.exe
4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
2652	powershell.exe
2884	powershell.exe
2876	Synaptics.exe
2876	Synaptics.exe
2876	Synaptics.exe
2876	Synaptics.exe
2876	Synaptics.exe
2876	Synaptics.exe
4092	powershell.exe
4092	powershell.exe
2876	Synaptics.exe
2876	Synaptics.exe
2840	powershell.exe
2840	powershell.exe
2876	Synaptics.exe
2876	Synaptics.exe
4092	powershell.exe
2840	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
Token: SeDebugPrivilege	2652	powershell.exe
Token: SeDebugPrivilege	2884	powershell.exe
Token: SeDebugPrivilege	2876	Synaptics.exe
Token: SeDebugPrivilege	4092	powershell.exe
Token: SeDebugPrivilege	2840	powershell.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
556	._cache_b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
1396	EXCEL.EXE
1396	EXCEL.EXE
1396	EXCEL.EXE
1396	EXCEL.EXE
1396	EXCEL.EXE
1396	EXCEL.EXE
1396	EXCEL.EXE
1396	EXCEL.EXE
1396	EXCEL.EXE

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 4828 wrote to memory of 2652	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	95
PID 4828 wrote to memory of 2652	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	95
PID 4828 wrote to memory of 2652	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	95
PID 4828 wrote to memory of 2884	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	97
PID 4828 wrote to memory of 2884	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	97
PID 4828 wrote to memory of 2884	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	97
PID 4828 wrote to memory of 4688	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	99
PID 4828 wrote to memory of 4688	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	99
PID 4828 wrote to memory of 4688	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	99
PID 4828 wrote to memory of 3812	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	101
PID 4828 wrote to memory of 3812	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	101
PID 4828 wrote to memory of 3812	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	101
PID 4828 wrote to memory of 3812	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	101
PID 4828 wrote to memory of 3812	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	101
PID 4828 wrote to memory of 3812	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	101
PID 4828 wrote to memory of 3812	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	101
PID 4828 wrote to memory of 3812	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	101
PID 4828 wrote to memory of 3812	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	101
PID 4828 wrote to memory of 3812	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	101
PID 4828 wrote to memory of 3812	4828	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	101
PID 3812 wrote to memory of 556	3812	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	102
PID 3812 wrote to memory of 556	3812	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	102
PID 3812 wrote to memory of 556	3812	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	102
PID 3812 wrote to memory of 2876	3812	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	103
PID 3812 wrote to memory of 2876	3812	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	103
PID 3812 wrote to memory of 2876	3812	b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe	103
PID 2876 wrote to memory of 4092	2876	Synaptics.exe	107
PID 2876 wrote to memory of 4092	2876	Synaptics.exe	107
PID 2876 wrote to memory of 4092	2876	Synaptics.exe	107
PID 2876 wrote to memory of 2840	2876	Synaptics.exe	109
PID 2876 wrote to memory of 2840	2876	Synaptics.exe	109
PID 2876 wrote to memory of 2840	2876	Synaptics.exe	109
PID 2876 wrote to memory of 1292	2876	Synaptics.exe	111
PID 2876 wrote to memory of 1292	2876	Synaptics.exe	111
PID 2876 wrote to memory of 1292	2876	Synaptics.exe	111
PID 2876 wrote to memory of 5076	2876	Synaptics.exe	113
PID 2876 wrote to memory of 5076	2876	Synaptics.exe	113
PID 2876 wrote to memory of 5076	2876	Synaptics.exe	113
PID 2876 wrote to memory of 664	2876	Synaptics.exe	114
PID 2876 wrote to memory of 664	2876	Synaptics.exe	114
PID 2876 wrote to memory of 664	2876	Synaptics.exe	114
PID 2876 wrote to memory of 664	2876	Synaptics.exe	114
PID 2876 wrote to memory of 664	2876	Synaptics.exe	114
PID 2876 wrote to memory of 664	2876	Synaptics.exe	114
PID 2876 wrote to memory of 664	2876	Synaptics.exe	114
PID 2876 wrote to memory of 664	2876	Synaptics.exe	114
PID 2876 wrote to memory of 664	2876	Synaptics.exe	114
PID 2876 wrote to memory of 664	2876	Synaptics.exe	114
PID 2876 wrote to memory of 664	2876	Synaptics.exe	114
PID 664 wrote to memory of 1392	664	Synaptics.exe	115
PID 664 wrote to memory of 1392	664	Synaptics.exe	115
PID 664 wrote to memory of 1392	664	Synaptics.exe	115

C:\Users\Admin\AppData\Local\Temp\b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
"C:\Users\Admin\AppData\Local\Temp\b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.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:4828
- 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\b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2652
- 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:2884
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SBYYcyqg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA0D.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4688
- C:\Users\Admin\AppData\Local\Temp\b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
  "C:\Users\Admin\AppData\Local\Temp\b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.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:3812
- - C:\Users\Admin\AppData\Local\Temp\._cache_b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_b264d23c08e569cfb116398ba9b68da55c929a0450795a1194c296cc307b4d65.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:556
- - 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:2876
  - - 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:4092
  - - 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:2840
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SBYYcyqg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6915.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1292
  - - C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe"
      4⤵
      Executes dropped EXE
      PID:5076
  - - 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:664
    - - 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:1392

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:1396

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