b8c5e2c8477706f3f54e152443718dcec270889002289aa1730eabc5ba3f312f

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	26c11dac9dc4d37ddb0c44f4fba7be9fe1bf84f46cc3f369c46b099fbef02bae.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.exe	26c11dac9dc4d37ddb0c44f4fba7be9fe1bf84f46cc3f369c46b099fbef02bae.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.exe	26c11dac9dc4d37ddb0c44f4fba7be9fe1bf84f46cc3f369c46b099fbef02bae.exe

Executes dropped EXE 4 IoCs

pid	Process
4828	svchost.exe
1920	TempWorm.exe.exe
2432	TempWorm.exe.exe
4704	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-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\98e70a2affbae7efdca689e718feee82 = "C:\\ProgramData\\Microsoft\\svchost.exe"	26c11dac9dc4d37ddb0c44f4fba7be9fe1bf84f46cc3f369c46b099fbef02bae.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\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	26c11dac9dc4d37ddb0c44f4fba7be9fe1bf84f46cc3f369c46b099fbef02bae.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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	dw20.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	TempWorm.exe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.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\ProcessorNameString	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 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\~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\~MHz	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	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
5252	schtasks.exe
5100	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe
4828	svchost.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeRestorePrivilege	4300	dw20.exe
Token: SeBackupPrivilege	4300	dw20.exe
Token: SeBackupPrivilege	4300	dw20.exe
Token: SeBackupPrivilege	4300	dw20.exe
Token: SeDebugPrivilege	4828	svchost.exe
Token: SeBackupPrivilege	1944	dw20.exe
Token: SeBackupPrivilege	1944	dw20.exe
Token: SeBackupPrivilege	4768	dw20.exe
Token: SeBackupPrivilege	4768	dw20.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 5252	2696	26c11dac9dc4d37ddb0c44f4fba7be9fe1bf84f46cc3f369c46b099fbef02bae.exe	86
PID 2696 wrote to memory of 5252	2696	26c11dac9dc4d37ddb0c44f4fba7be9fe1bf84f46cc3f369c46b099fbef02bae.exe	86
PID 2696 wrote to memory of 5252	2696	26c11dac9dc4d37ddb0c44f4fba7be9fe1bf84f46cc3f369c46b099fbef02bae.exe	86
PID 2696 wrote to memory of 4828	2696	26c11dac9dc4d37ddb0c44f4fba7be9fe1bf84f46cc3f369c46b099fbef02bae.exe	88
PID 2696 wrote to memory of 4828	2696	26c11dac9dc4d37ddb0c44f4fba7be9fe1bf84f46cc3f369c46b099fbef02bae.exe	88
PID 2696 wrote to memory of 4828	2696	26c11dac9dc4d37ddb0c44f4fba7be9fe1bf84f46cc3f369c46b099fbef02bae.exe	88
PID 4828 wrote to memory of 5100	4828	svchost.exe	89
PID 4828 wrote to memory of 5100	4828	svchost.exe	89
PID 4828 wrote to memory of 5100	4828	svchost.exe	89
PID 1920 wrote to memory of 4300	1920	TempWorm.exe.exe	92
PID 1920 wrote to memory of 4300	1920	TempWorm.exe.exe	92
PID 1920 wrote to memory of 4300	1920	TempWorm.exe.exe	92
PID 2432 wrote to memory of 1944	2432	TempWorm.exe.exe	108
PID 2432 wrote to memory of 1944	2432	TempWorm.exe.exe	108
PID 2432 wrote to memory of 1944	2432	TempWorm.exe.exe	108
PID 4704 wrote to memory of 4768	4704	TempWorm.exe.exe	116
PID 4704 wrote to memory of 4768	4704	TempWorm.exe.exe	116
PID 4704 wrote to memory of 4768	4704	TempWorm.exe.exe	116

C:\Users\Admin\AppData\Local\Temp\26c11dac9dc4d37ddb0c44f4fba7be9fe1bf84f46cc3f369c46b099fbef02bae.exe
"C:\Users\Admin\AppData\Local\Temp\26c11dac9dc4d37ddb0c44f4fba7be9fe1bf84f46cc3f369c46b099fbef02bae.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:2696
- 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:5252
- 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:4828
- - 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:5100

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:1920
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 980
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:4300

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:2432
- 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:1944

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:4704
- 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:4768

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