70bba6e748b04c937188f113389a3c90bf30806add70222b920886a57b0bdd98

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	1277e3138bd062ad1b4496b667377740.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.exe	1277e3138bd062ad1b4496b667377740.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.exe	1277e3138bd062ad1b4496b667377740.exe

Executes dropped EXE 3 IoCs

pid	Process
4908	svchost.exe
2216	TempWorm.exe.exe
2132	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-1-5-21-1062200478-553497403-3857448183-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\98e70a2affbae7efdca689e718feee82 = "C:\\ProgramData\\Microsoft\\svchost.exe"	1277e3138bd062ad1b4496b667377740.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\98e70a2affbae7efdca689e718feee82 = "C:\\ProgramData\\Microsoft\\svchost.exe"	svchost.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	dw20.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 8 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	1277e3138bd062ad1b4496b667377740.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TempWorm.exe.exe
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

Checks processor information in registry 2 TTPs 6 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	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 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

Enumerates system info in registry 2 TTPs 4 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

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
2820	schtasks.exe
5148	schtasks.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe
4908	svchost.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4908	svchost.exe
Token: SeRestorePrivilege	3076	dw20.exe
Token: SeBackupPrivilege	3076	dw20.exe
Token: SeBackupPrivilege	3076	dw20.exe
Token: SeBackupPrivilege	3076	dw20.exe
Token: SeBackupPrivilege	3076	dw20.exe
Token: SeBackupPrivilege	4480	dw20.exe
Token: SeBackupPrivilege	4480	dw20.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 5676 wrote to memory of 2820	5676	1277e3138bd062ad1b4496b667377740.exe	88
PID 5676 wrote to memory of 2820	5676	1277e3138bd062ad1b4496b667377740.exe	88
PID 5676 wrote to memory of 2820	5676	1277e3138bd062ad1b4496b667377740.exe	88
PID 5676 wrote to memory of 4908	5676	1277e3138bd062ad1b4496b667377740.exe	92
PID 5676 wrote to memory of 4908	5676	1277e3138bd062ad1b4496b667377740.exe	92
PID 5676 wrote to memory of 4908	5676	1277e3138bd062ad1b4496b667377740.exe	92
PID 4908 wrote to memory of 5148	4908	svchost.exe	93
PID 4908 wrote to memory of 5148	4908	svchost.exe	93
PID 4908 wrote to memory of 5148	4908	svchost.exe	93
PID 2216 wrote to memory of 3076	2216	TempWorm.exe.exe	107
PID 2216 wrote to memory of 3076	2216	TempWorm.exe.exe	107
PID 2216 wrote to memory of 3076	2216	TempWorm.exe.exe	107
PID 2132 wrote to memory of 4480	2132	TempWorm.exe.exe	111
PID 2132 wrote to memory of 4480	2132	TempWorm.exe.exe	111
PID 2132 wrote to memory of 4480	2132	TempWorm.exe.exe	111

C:\Users\Admin\AppData\Local\Temp\1277e3138bd062ad1b4496b667377740.exe
"C:\Users\Admin\AppData\Local\Temp\1277e3138bd062ad1b4496b667377740.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:5676
- 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:2820
- 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:4908
- - 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:5148

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:2216
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 964
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:3076

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:2132
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 944
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:4480

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