667cb510540d8e7a6cd30007d30a8ca11110dde57bd03d2cbf87ca6b7868bdb9

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Control Panel\International\Geo\Nation	ee5fd05cf5c85b15681d9d29faed9891e4fb86815f92bb3a816e2c7c191bbcc3.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.exe	ee5fd05cf5c85b15681d9d29faed9891e4fb86815f92bb3a816e2c7c191bbcc3.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.exe	ee5fd05cf5c85b15681d9d29faed9891e4fb86815f92bb3a816e2c7c191bbcc3.exe

Executes dropped EXE 4 IoCs

pid	Process
5112	TempWorm.exe.exe
1096	svchost.exe
3192	TempWorm.exe.exe
2640	TempWorm.exe.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\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\98e70a2affbae7efdca689e718feee82 = "C:\\ProgramData\\Microsoft\\svchost.exe"	ee5fd05cf5c85b15681d9d29faed9891e4fb86815f92bb3a816e2c7c191bbcc3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\98e70a2affbae7efdca689e718feee82 = "C:\\ProgramData\\Microsoft\\svchost.exe"	svchost.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 10 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	dw20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TempWorm.exe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ee5fd05cf5c85b15681d9d29faed9891e4fb86815f92bb3a816e2c7c191bbcc3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TempWorm.exe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TempWorm.exe.exe

Checks processor information in registry 2 TTPs 9 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\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 6 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.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
4356	schtasks.exe
5092	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe
1096	svchost.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeRestorePrivilege	2256	dw20.exe
Token: SeBackupPrivilege	2256	dw20.exe
Token: SeBackupPrivilege	2256	dw20.exe
Token: SeBackupPrivilege	2256	dw20.exe
Token: SeDebugPrivilege	1096	svchost.exe
Token: SeBackupPrivilege	2856	dw20.exe
Token: SeBackupPrivilege	2856	dw20.exe
Token: SeBackupPrivilege	2708	dw20.exe
Token: SeBackupPrivilege	2708	dw20.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3080 wrote to memory of 4356	3080	ee5fd05cf5c85b15681d9d29faed9891e4fb86815f92bb3a816e2c7c191bbcc3.exe	87
PID 3080 wrote to memory of 4356	3080	ee5fd05cf5c85b15681d9d29faed9891e4fb86815f92bb3a816e2c7c191bbcc3.exe	87
PID 3080 wrote to memory of 4356	3080	ee5fd05cf5c85b15681d9d29faed9891e4fb86815f92bb3a816e2c7c191bbcc3.exe	87
PID 5112 wrote to memory of 2256	5112	TempWorm.exe.exe	96
PID 5112 wrote to memory of 2256	5112	TempWorm.exe.exe	96
PID 5112 wrote to memory of 2256	5112	TempWorm.exe.exe	96
PID 3080 wrote to memory of 1096	3080	ee5fd05cf5c85b15681d9d29faed9891e4fb86815f92bb3a816e2c7c191bbcc3.exe	98
PID 3080 wrote to memory of 1096	3080	ee5fd05cf5c85b15681d9d29faed9891e4fb86815f92bb3a816e2c7c191bbcc3.exe	98
PID 3080 wrote to memory of 1096	3080	ee5fd05cf5c85b15681d9d29faed9891e4fb86815f92bb3a816e2c7c191bbcc3.exe	98
PID 1096 wrote to memory of 5092	1096	svchost.exe	99
PID 1096 wrote to memory of 5092	1096	svchost.exe	99
PID 1096 wrote to memory of 5092	1096	svchost.exe	99
PID 3192 wrote to memory of 2856	3192	TempWorm.exe.exe	112
PID 3192 wrote to memory of 2856	3192	TempWorm.exe.exe	112
PID 3192 wrote to memory of 2856	3192	TempWorm.exe.exe	112
PID 2640 wrote to memory of 2708	2640	TempWorm.exe.exe	115
PID 2640 wrote to memory of 2708	2640	TempWorm.exe.exe	115
PID 2640 wrote to memory of 2708	2640	TempWorm.exe.exe	115

C:\Users\Admin\AppData\Local\Temp\ee5fd05cf5c85b15681d9d29faed9891e4fb86815f92bb3a816e2c7c191bbcc3.exe
"C:\Users\Admin\AppData\Local\Temp\ee5fd05cf5c85b15681d9d29faed9891e4fb86815f92bb3a816e2c7c191bbcc3.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3080
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /sc minute /mo 1 /tn server /tr C:\Users\Admin\AppData\Local\TempWorm.exe.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4356
- C:\ProgramData\Microsoft\svchost.exe
  "C:\ProgramData\Microsoft\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1096
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn server /tr C:\Users\Admin\AppData\Local\TempWorm.exe.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5092

C:\Users\Admin\AppData\Local\TempWorm.exe.exe
C:\Users\Admin\AppData\Local\TempWorm.exe.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5112
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 972
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2256

C:\Users\Admin\AppData\Local\TempWorm.exe.exe
C:\Users\Admin\AppData\Local\TempWorm.exe.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3192
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 952
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2856

C:\Users\Admin\AppData\Local\TempWorm.exe.exe
C:\Users\Admin\AppData\Local\TempWorm.exe.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 952
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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