7ddbec7fac00ec5624f45da5879ebfa97d95b21c7842cbaa1058daa46a47bd41

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	c486ed6acb598d864bd441b40bbb31df.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.exe	c486ed6acb598d864bd441b40bbb31df.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.exe	c486ed6acb598d864bd441b40bbb31df.exe

Executes dropped EXE 2 IoCs

pid	Process
4892	svchost.exe
5552	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"	c486ed6acb598d864bd441b40bbb31df.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

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 6 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	svchost.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	c486ed6acb598d864bd441b40bbb31df.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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	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 2 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

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
4744	schtasks.exe
4796	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe
4892	svchost.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4892	svchost.exe
Token: SeRestorePrivilege	4532	dw20.exe
Token: SeBackupPrivilege	4532	dw20.exe
Token: SeBackupPrivilege	4532	dw20.exe
Token: SeBackupPrivilege	4532	dw20.exe
Token: SeBackupPrivilege	4532	dw20.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 5376 wrote to memory of 4744	5376	c486ed6acb598d864bd441b40bbb31df.exe	86
PID 5376 wrote to memory of 4744	5376	c486ed6acb598d864bd441b40bbb31df.exe	86
PID 5376 wrote to memory of 4744	5376	c486ed6acb598d864bd441b40bbb31df.exe	86
PID 5376 wrote to memory of 4892	5376	c486ed6acb598d864bd441b40bbb31df.exe	94
PID 5376 wrote to memory of 4892	5376	c486ed6acb598d864bd441b40bbb31df.exe	94
PID 5376 wrote to memory of 4892	5376	c486ed6acb598d864bd441b40bbb31df.exe	94
PID 4892 wrote to memory of 4796	4892	svchost.exe	95
PID 4892 wrote to memory of 4796	4892	svchost.exe	95
PID 4892 wrote to memory of 4796	4892	svchost.exe	95
PID 5552 wrote to memory of 4532	5552	TempWorm.exe.exe	103
PID 5552 wrote to memory of 4532	5552	TempWorm.exe.exe	103
PID 5552 wrote to memory of 4532	5552	TempWorm.exe.exe	103

C:\Users\Admin\AppData\Local\Temp\c486ed6acb598d864bd441b40bbb31df.exe
"C:\Users\Admin\AppData\Local\Temp\c486ed6acb598d864bd441b40bbb31df.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:5376
- 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:4744
- 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:4892
- - 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:4796

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:5552
- 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:4532

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