njrat | db27bc172a5de048b3514746a8d78bfda52828ac10bf929fc89839b2cdc9deab

System Information Discovery

persistence privilege_escalation

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1581648047-808845429-2272123689-1000\Control Panel\International\Geo\Nation	Lammer.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ded5a8703334377d83da00a864706211.exe	System.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ded5a8703334377d83da00a864706211.exe	System.exe

Executes dropped EXE 1 IoCs

pid	Process
4052	System.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-1-5-21-1581648047-808845429-2272123689-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ded5a8703334377d83da00a864706211 = "\"C:\\ProgramData\\System.exe\" .."	System.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ded5a8703334377d83da00a864706211 = "\"C:\\ProgramData\\System.exe\" .."	System.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

Netsh Helper DLL

T1546.007

description	ioc	Process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Lammer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 3 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2404	cmd.exe
4116	PING.EXE
2376	EXCEL.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4116	PING.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2376	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeDebugPrivilege	4052	System.exe
Token: 33	4052	System.exe
Token: SeIncBasePriorityPrivilege	4052	System.exe
Token: 33	4052	System.exe
Token: SeIncBasePriorityPrivilege	4052	System.exe
Token: 33	4052	System.exe
Token: SeIncBasePriorityPrivilege	4052	System.exe
Token: 33	4052	System.exe
Token: SeIncBasePriorityPrivilege	4052	System.exe
Token: 33	4052	System.exe
Token: SeIncBasePriorityPrivilege	4052	System.exe
Token: 33	4052	System.exe
Token: SeIncBasePriorityPrivilege	4052	System.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2376	EXCEL.EXE
2376	EXCEL.EXE
2376	EXCEL.EXE
2376	EXCEL.EXE
2376	EXCEL.EXE
2376	EXCEL.EXE
2376	EXCEL.EXE
2376	EXCEL.EXE
2376	EXCEL.EXE
2376	EXCEL.EXE
2376	EXCEL.EXE
2376	EXCEL.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 4052	1864	Lammer.exe	88
PID 1864 wrote to memory of 4052	1864	Lammer.exe	88
PID 1864 wrote to memory of 4052	1864	Lammer.exe	88
PID 4052 wrote to memory of 3120	4052	System.exe	91
PID 4052 wrote to memory of 3120	4052	System.exe	91
PID 4052 wrote to memory of 3120	4052	System.exe	91
PID 4052 wrote to memory of 1104	4052	System.exe	94
PID 4052 wrote to memory of 1104	4052	System.exe	94
PID 4052 wrote to memory of 1104	4052	System.exe	94
PID 4052 wrote to memory of 2472	4052	System.exe	101
PID 4052 wrote to memory of 2472	4052	System.exe	101
PID 4052 wrote to memory of 2472	4052	System.exe	101
PID 4052 wrote to memory of 2404	4052	System.exe	103
PID 4052 wrote to memory of 2404	4052	System.exe	103
PID 4052 wrote to memory of 2404	4052	System.exe	103
PID 2404 wrote to memory of 4116	2404	cmd.exe	105
PID 2404 wrote to memory of 4116	2404	cmd.exe	105
PID 2404 wrote to memory of 4116	2404	cmd.exe	105

C:\Users\Admin\AppData\Local\Temp\Lammer.exe
"C:\Users\Admin\AppData\Local\Temp\Lammer.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1864
- C:\ProgramData\System.exe
  "C:\ProgramData\System.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4052
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\System.exe" "System.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3120
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1104
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall delete allowedprogram "C:\ProgramData\System.exe"
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2472
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c ping 0 -n 2 & del "C:\ProgramData\System.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2404
  - - C:\Windows\SysWOW64\PING.EXE
      ping 0 -n 2
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:4116

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\Desktop\PingInitialize.xlsx"
1⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

3

Remote System Discovery

T1018

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery