njrat | 81193651af092ef7f9382122950f1fc62366019f3ee30cd3c8b1e547859d767e

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-10-2024 15:47

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General

Target

BootstrapperV1.32.exe
Size

55KB
MD5

a789f36018dc8f90b31f5a4bada5f06e
SHA1

9055844946a5d8f0e28f2c4166e4a7ee37b78abd
SHA256

81193651af092ef7f9382122950f1fc62366019f3ee30cd3c8b1e547859d767e
SHA512

853ae72e8f3fdb103c98e6b8cb1e8b96ece313491ab7f2db386238e2f88c690ce2848c57c212fa7bd1c65a52ca5bcee8c89d33c6608211e50c2afdb6dc79ad8d
SSDEEP

1536:yxYADn8fLN2/SbxRDD3wsNMDbXExI3pm6m:VADnccqbTDD3wsNMDbXExI3pm

Score

10^/10

njrat discovery evasion execution persistence trojan

Malware Config

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Deletes itself 1 IoCs

pid	Process
2372	cmd.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d54b8b335e1de961884f3956c1c39c50.exe	BootstrapperV1.32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d54b8b335e1de961884f3956c1c39c50.exe	BootstrapperV1.32.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\d54b8b335e1de961884f3956c1c39c50 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\BootstrapperV1.32.exe\" .."	BootstrapperV1.32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\d54b8b335e1de961884f3956c1c39c50 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\BootstrapperV1.32.exe\" .."	BootstrapperV1.32.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3036	powershell.exe

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2820	sc.exe
2216	sc.exe
2824	sc.exe

System Location Discovery: System Language Discovery 1 TTPs 12 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BootstrapperV1.32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2372	cmd.exe
980	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
980	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3036	powershell.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe
2368	BootstrapperV1.32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2368	BootstrapperV1.32.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	3036	powershell.exe
Token: SeDebugPrivilege	2368	BootstrapperV1.32.exe
Token: 33	2368	BootstrapperV1.32.exe
Token: SeIncBasePriorityPrivilege	2368	BootstrapperV1.32.exe
Token: 33	2368	BootstrapperV1.32.exe
Token: SeIncBasePriorityPrivilege	2368	BootstrapperV1.32.exe
Token: SeDebugPrivilege	2740	taskmgr.exe
Token: 33	2368	BootstrapperV1.32.exe
Token: SeIncBasePriorityPrivilege	2368	BootstrapperV1.32.exe

Suspicious use of FindShellTrayWindow 13 IoCs

pid	Process
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe

Suspicious use of SendNotifyMessage 13 IoCs

pid	Process
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe
2740	taskmgr.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2416	2368	BootstrapperV1.32.exe	31
PID 2368 wrote to memory of 2416	2368	BootstrapperV1.32.exe	31
PID 2368 wrote to memory of 2416	2368	BootstrapperV1.32.exe	31
PID 2368 wrote to memory of 2416	2368	BootstrapperV1.32.exe	31
PID 2416 wrote to memory of 3036	2416	cmd.exe	33
PID 2416 wrote to memory of 3036	2416	cmd.exe	33
PID 2416 wrote to memory of 3036	2416	cmd.exe	33
PID 2416 wrote to memory of 3036	2416	cmd.exe	33
PID 2368 wrote to memory of 2800	2368	BootstrapperV1.32.exe	34
PID 2368 wrote to memory of 2800	2368	BootstrapperV1.32.exe	34
PID 2368 wrote to memory of 2800	2368	BootstrapperV1.32.exe	34
PID 2368 wrote to memory of 2800	2368	BootstrapperV1.32.exe	34
PID 2800 wrote to memory of 2824	2800	cmd.exe	36
PID 2800 wrote to memory of 2824	2800	cmd.exe	36
PID 2800 wrote to memory of 2824	2800	cmd.exe	36
PID 2800 wrote to memory of 2824	2800	cmd.exe	36
PID 2368 wrote to memory of 2836	2368	BootstrapperV1.32.exe	37
PID 2368 wrote to memory of 2836	2368	BootstrapperV1.32.exe	37
PID 2368 wrote to memory of 2836	2368	BootstrapperV1.32.exe	37
PID 2368 wrote to memory of 2836	2368	BootstrapperV1.32.exe	37
PID 2836 wrote to memory of 2820	2836	cmd.exe	39
PID 2836 wrote to memory of 2820	2836	cmd.exe	39
PID 2836 wrote to memory of 2820	2836	cmd.exe	39
PID 2836 wrote to memory of 2820	2836	cmd.exe	39
PID 2368 wrote to memory of 2760	2368	BootstrapperV1.32.exe	40
PID 2368 wrote to memory of 2760	2368	BootstrapperV1.32.exe	40
PID 2368 wrote to memory of 2760	2368	BootstrapperV1.32.exe	40
PID 2368 wrote to memory of 2760	2368	BootstrapperV1.32.exe	40
PID 2760 wrote to memory of 2216	2760	cmd.exe	42
PID 2760 wrote to memory of 2216	2760	cmd.exe	42
PID 2760 wrote to memory of 2216	2760	cmd.exe	42
PID 2760 wrote to memory of 2216	2760	cmd.exe	42
PID 2368 wrote to memory of 2264	2368	BootstrapperV1.32.exe	45
PID 2368 wrote to memory of 2264	2368	BootstrapperV1.32.exe	45
PID 2368 wrote to memory of 2264	2368	BootstrapperV1.32.exe	45
PID 2368 wrote to memory of 2264	2368	BootstrapperV1.32.exe	45
PID 2368 wrote to memory of 2372	2368	BootstrapperV1.32.exe	47
PID 2368 wrote to memory of 2372	2368	BootstrapperV1.32.exe	47
PID 2368 wrote to memory of 2372	2368	BootstrapperV1.32.exe	47
PID 2368 wrote to memory of 2372	2368	BootstrapperV1.32.exe	47
PID 2372 wrote to memory of 980	2372	cmd.exe	49
PID 2372 wrote to memory of 980	2372	cmd.exe	49
PID 2372 wrote to memory of 980	2372	cmd.exe	49
PID 2372 wrote to memory of 980	2372	cmd.exe	49

C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.32.exe
"C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.32.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\cmd.exe
  cmd /c powershell Set-MpPreference -DisableRealtimeMonitoring $true
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2416
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell Set-MpPreference -DisableRealtimeMonitoring $true
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3036
- C:\Windows\SysWOW64\cmd.exe
  cmd /c sc query windefend
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2800
- - C:\Windows\SysWOW64\sc.exe
    sc query windefend
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:2824
- C:\Windows\SysWOW64\cmd.exe
  cmd /c sc stop windefend
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Windows\SysWOW64\sc.exe
    sc stop windefend
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:2820
- C:\Windows\SysWOW64\cmd.exe
  cmd /c sc delete windefend
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Windows\SysWOW64\sc.exe
    sc delete windefend
    3⤵
    - Launches sc.exe
    - System Location Discovery: System Language Discovery
    PID:2216
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /delete /tn CleanSweepCheck /f
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2264
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 0 -n 2 & del "C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.32.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2372
- - C:\Windows\SysWOW64\PING.EXE
    ping 0 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:980

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

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

Defense Evasion

Impair Defenses

T1562

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

memory/2368-0-0x0000000074731000-0x0000000074732000-memory.dmp

Filesize
4KB

Download
memory/2368-1-0x0000000074730000-0x0000000074CDB000-memory.dmp

Filesize
5.7MB

Download
memory/2368-2-0x0000000074730000-0x0000000074CDB000-memory.dmp

Filesize
5.7MB

Download
memory/2368-6-0x0000000074730000-0x0000000074CDB000-memory.dmp

Filesize
5.7MB

Download
memory/2368-13-0x0000000074730000-0x0000000074CDB000-memory.dmp

Filesize
5.7MB

Download
memory/3036-5-0x0000000074730000-0x0000000074CDB000-memory.dmp

Filesize
5.7MB

Download
memory/3036-7-0x0000000074730000-0x0000000074CDB000-memory.dmp

Filesize
5.7MB

Download
memory/3036-8-0x0000000074730000-0x0000000074CDB000-memory.dmp

Filesize
5.7MB

Download
memory/3036-9-0x0000000074730000-0x0000000074CDB000-memory.dmp

Filesize
5.7MB

Download