xred | 8700a1371346e810a89948dc80b65122bb1f677b9d88339785a066936e734e32

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4074627901-37362009-3519777259-1000\Control Panel\International\Geo\Nation	crak.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4074627901-37362009-3519777259-1000\Control Panel\International\Geo\Nation	._cache_crak.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\boost.lnk	._cache_crak.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\boost.lnk	._cache_crak.exe

Executes dropped EXE 2 IoCs

pid	Process
3448	._cache_crak.exe
4068	Synaptics.exe

Adds Run key to start application 2 TTPs 2 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\????? = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	crak.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4074627901-37362009-3519777259-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\boost = "C:\\Users\\Admin\\AppData\\Roaming\\boost"	._cache_crak.exe

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 2 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	crak.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2392	timeout.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 1 IoCs

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

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
2876	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4092	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
468	powershell.exe
468	powershell.exe
4224	powershell.exe
4224	powershell.exe
4376	powershell.exe
4376	powershell.exe
4420	powershell.exe
4420	powershell.exe
3448	._cache_crak.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3448	._cache_crak.exe
Token: SeDebugPrivilege	468	powershell.exe
Token: SeIncreaseQuotaPrivilege	468	powershell.exe
Token: SeSecurityPrivilege	468	powershell.exe
Token: SeTakeOwnershipPrivilege	468	powershell.exe
Token: SeLoadDriverPrivilege	468	powershell.exe
Token: SeSystemProfilePrivilege	468	powershell.exe
Token: SeSystemtimePrivilege	468	powershell.exe
Token: SeProfSingleProcessPrivilege	468	powershell.exe
Token: SeIncBasePriorityPrivilege	468	powershell.exe
Token: SeCreatePagefilePrivilege	468	powershell.exe
Token: SeBackupPrivilege	468	powershell.exe
Token: SeRestorePrivilege	468	powershell.exe
Token: SeShutdownPrivilege	468	powershell.exe
Token: SeDebugPrivilege	468	powershell.exe
Token: SeSystemEnvironmentPrivilege	468	powershell.exe
Token: SeRemoteShutdownPrivilege	468	powershell.exe
Token: SeUndockPrivilege	468	powershell.exe
Token: SeManageVolumePrivilege	468	powershell.exe
Token: 33	468	powershell.exe
Token: 34	468	powershell.exe
Token: 35	468	powershell.exe
Token: 36	468	powershell.exe
Token: SeDebugPrivilege	4224	powershell.exe
Token: SeIncreaseQuotaPrivilege	4224	powershell.exe
Token: SeSecurityPrivilege	4224	powershell.exe
Token: SeTakeOwnershipPrivilege	4224	powershell.exe
Token: SeLoadDriverPrivilege	4224	powershell.exe
Token: SeSystemProfilePrivilege	4224	powershell.exe
Token: SeSystemtimePrivilege	4224	powershell.exe
Token: SeProfSingleProcessPrivilege	4224	powershell.exe
Token: SeIncBasePriorityPrivilege	4224	powershell.exe
Token: SeCreatePagefilePrivilege	4224	powershell.exe
Token: SeBackupPrivilege	4224	powershell.exe
Token: SeRestorePrivilege	4224	powershell.exe
Token: SeShutdownPrivilege	4224	powershell.exe
Token: SeDebugPrivilege	4224	powershell.exe
Token: SeSystemEnvironmentPrivilege	4224	powershell.exe
Token: SeRemoteShutdownPrivilege	4224	powershell.exe
Token: SeUndockPrivilege	4224	powershell.exe
Token: SeManageVolumePrivilege	4224	powershell.exe
Token: 33	4224	powershell.exe
Token: 34	4224	powershell.exe
Token: 35	4224	powershell.exe
Token: 36	4224	powershell.exe
Token: SeDebugPrivilege	4376	powershell.exe
Token: SeIncreaseQuotaPrivilege	4376	powershell.exe
Token: SeSecurityPrivilege	4376	powershell.exe
Token: SeTakeOwnershipPrivilege	4376	powershell.exe
Token: SeLoadDriverPrivilege	4376	powershell.exe
Token: SeSystemProfilePrivilege	4376	powershell.exe
Token: SeSystemtimePrivilege	4376	powershell.exe
Token: SeProfSingleProcessPrivilege	4376	powershell.exe
Token: SeIncBasePriorityPrivilege	4376	powershell.exe
Token: SeCreatePagefilePrivilege	4376	powershell.exe
Token: SeBackupPrivilege	4376	powershell.exe
Token: SeRestorePrivilege	4376	powershell.exe
Token: SeShutdownPrivilege	4376	powershell.exe
Token: SeDebugPrivilege	4376	powershell.exe
Token: SeSystemEnvironmentPrivilege	4376	powershell.exe
Token: SeRemoteShutdownPrivilege	4376	powershell.exe
Token: SeUndockPrivilege	4376	powershell.exe
Token: SeManageVolumePrivilege	4376	powershell.exe
Token: 33	4376	powershell.exe

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
4092	EXCEL.EXE
4092	EXCEL.EXE
4092	EXCEL.EXE
4092	EXCEL.EXE
4092	EXCEL.EXE
4092	EXCEL.EXE
4092	EXCEL.EXE
4092	EXCEL.EXE
3448	._cache_crak.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4900 wrote to memory of 3448	4900	crak.exe	81
PID 4900 wrote to memory of 3448	4900	crak.exe	81
PID 4900 wrote to memory of 4068	4900	crak.exe	82
PID 4900 wrote to memory of 4068	4900	crak.exe	82
PID 4900 wrote to memory of 4068	4900	crak.exe	82
PID 3448 wrote to memory of 468	3448	._cache_crak.exe	91
PID 3448 wrote to memory of 468	3448	._cache_crak.exe	91
PID 3448 wrote to memory of 4224	3448	._cache_crak.exe	94
PID 3448 wrote to memory of 4224	3448	._cache_crak.exe	94
PID 3448 wrote to memory of 4376	3448	._cache_crak.exe	96
PID 3448 wrote to memory of 4376	3448	._cache_crak.exe	96
PID 3448 wrote to memory of 4420	3448	._cache_crak.exe	98
PID 3448 wrote to memory of 4420	3448	._cache_crak.exe	98
PID 3448 wrote to memory of 2876	3448	._cache_crak.exe	101
PID 3448 wrote to memory of 2876	3448	._cache_crak.exe	101
PID 3448 wrote to memory of 3480	3448	._cache_crak.exe	106
PID 3448 wrote to memory of 3480	3448	._cache_crak.exe	106
PID 3448 wrote to memory of 3592	3448	._cache_crak.exe	108
PID 3448 wrote to memory of 3592	3448	._cache_crak.exe	108
PID 3592 wrote to memory of 2392	3592	cmd.exe	110
PID 3592 wrote to memory of 2392	3592	cmd.exe	110

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\crak.exe
"C:\Users\Admin\AppData\Local\Temp\crak.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4900
- C:\Users\Admin\AppData\Local\Temp\._cache_crak.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_crak.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3448
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\._cache_crak.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:468
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '._cache_crak.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4224
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\boost'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4376
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'boost'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    PID:4420
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "boost" /tr "C:\Users\Admin\AppData\Roaming\boost"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2876
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /delete /f /tn "boost"
    3⤵
    PID:3480
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp33FC.tmp.bat""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3592
  - - C:\Windows\system32\timeout.exe
      timeout 3
      4⤵
      Delays execution with timeout.exe
      PID:2392
- C:\ProgramData\Synaptics\Synaptics.exe
  "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4068

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:4092

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