njrat | 7f1beb32d0565e8ebe9db45b1bc9a29b8fe6f2cfb7f17605bd2f6ec40f761b89

Analysis

max time kernel
151s
max time network
152s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:33

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General

Target

5bc9cb6ad0fa3859ec1f5aa542d9350b.exe
Size

28KB
MD5

5bc9cb6ad0fa3859ec1f5aa542d9350b
SHA1

9eb380e12c31f714356e957f27ea2a9a353433fd
SHA256

3c91d53cfe883fa95a24c9706f3d7cb44149d6db0386c64220d3ac8cd340e1e8
SHA512

3e51284910068366ca0aa44d3ca9df759f9d906fd8c036ae80c0518fc766acf78c0748abc2b23c028b13f3d9229b1eddc39cf4f2fab3517360db0ac63d10c7c9
SSDEEP

384:fHz+t6T6MD8fAtAu5Lt1zrl26m2pOivYPLz00LE2wVGubiNrxwmjYZtHMJhDdtVW:yt6TTsE5fzRFZcY0LiV9bvZqV

Score

10^/10

njrat defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2640	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5a3df68a7f0b36e978bac446220ce98f.exe	svchcoct.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5a3df68a7f0b36e978bac446220ce98f.exe	svchcoct.exe

Executes dropped EXE 1 IoCs

pid	Process
2676	svchcoct.exe

Loads dropped DLL 1 IoCs

pid	Process
2664	5bc9cb6ad0fa3859ec1f5aa542d9350b.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\5a3df68a7f0b36e978bac446220ce98f = "\"C:\\ProgramData\\svchcoct.exe\" .."	svchcoct.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5a3df68a7f0b36e978bac446220ce98f = "\"C:\\ProgramData\\svchcoct.exe\" .."	svchcoct.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 3 IoCs

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

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
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

System Location Discovery: System Language Discovery 1 TTPs 3 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	5bc9cb6ad0fa3859ec1f5aa542d9350b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchcoct.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 40 IoCs

pid	Process
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe
2676	svchcoct.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2676	svchcoct.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2664 wrote to memory of 2676	2664	5bc9cb6ad0fa3859ec1f5aa542d9350b.exe	30
PID 2664 wrote to memory of 2676	2664	5bc9cb6ad0fa3859ec1f5aa542d9350b.exe	30
PID 2664 wrote to memory of 2676	2664	5bc9cb6ad0fa3859ec1f5aa542d9350b.exe	30
PID 2664 wrote to memory of 2676	2664	5bc9cb6ad0fa3859ec1f5aa542d9350b.exe	30
PID 2676 wrote to memory of 2640	2676	svchcoct.exe	31
PID 2676 wrote to memory of 2640	2676	svchcoct.exe	31
PID 2676 wrote to memory of 2640	2676	svchcoct.exe	31
PID 2676 wrote to memory of 2640	2676	svchcoct.exe	31

C:\Users\Admin\AppData\Local\Temp\5bc9cb6ad0fa3859ec1f5aa542d9350b.exe
"C:\Users\Admin\AppData\Local\Temp\5bc9cb6ad0fa3859ec1f5aa542d9350b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2664
- C:\ProgramData\svchcoct.exe
  "C:\ProgramData\svchcoct.exe"
  2⤵
  - Drops startup file
  - 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:2676
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\ProgramData\svchcoct.exe" "svchcoct.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2640

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

T1562.004

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\svchcoct.exe

Filesize
28KB

MD5
5bc9cb6ad0fa3859ec1f5aa542d9350b

SHA1
9eb380e12c31f714356e957f27ea2a9a353433fd

SHA256
3c91d53cfe883fa95a24c9706f3d7cb44149d6db0386c64220d3ac8cd340e1e8

SHA512
3e51284910068366ca0aa44d3ca9df759f9d906fd8c036ae80c0518fc766acf78c0748abc2b23c028b13f3d9229b1eddc39cf4f2fab3517360db0ac63d10c7c9

Download Submit
memory/2664-0-0x0000000074931000-0x0000000074932000-memory.dmp

Filesize
4KB

Download
memory/2664-1-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2664-2-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2664-10-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2676-11-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2676-12-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download
memory/2676-14-0x0000000074930000-0x0000000074EDB000-memory.dmp

Filesize
5.7MB

Download