njrat | 76e7d47eb1ab002d0536d9c2e073eb9286c9ce78aff2d9ac042e7c01916a2712

General

Target

Setup.zip
Size

346KB
MD5

2bb6ee5e68c1042aaad2e0d33a279f93
SHA1

7f7bd9b09e1bcd3eba0bef4e42b0066ecf3cece0
SHA256

76e7d47eb1ab002d0536d9c2e073eb9286c9ce78aff2d9ac042e7c01916a2712
SHA512

618a930a8d3df5092278c15303326fa149aea5757e8d5ad8e054aaacaedb51d409f987a75fd489a19c426a2b2d5b36ec3f63c1f7bc1b1b70cdd06bd8e75c3b28
SSDEEP

6144:ZnVt5WDMqx82+hn5dXsPx9+HCwIsKDQeWVIbZhhoWmud+b:VrMDMqx82onv8Z98QpeGZXosc

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

3.121.113.182:1337

Mutex

0cf848bcebf5d082d484e0ffe1e8f23e

Attributes

reg_key
0cf848bcebf5d082d484e0ffe1e8f23e
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1712	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	Setup.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0cf848bcebf5d082d484e0ffe1e8f23e.exe	WindowsServer.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0cf848bcebf5d082d484e0ffe1e8f23e.exe	WindowsServer.exe

Executes dropped EXE 2 IoCs

pid	Process
3032	Setup.exe
3408	WindowsServer.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0cf848bcebf5d082d484e0ffe1e8f23e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WindowsServer.exe\" .."	WindowsServer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\0cf848bcebf5d082d484e0ffe1e8f23e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WindowsServer.exe\" .."	WindowsServer.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	WindowsServer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Setup.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000_Classes\Local Settings	7zFM.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2988	7zFM.exe
2988	7zFM.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2988	7zFM.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeRestorePrivilege	2988	7zFM.exe
Token: 35	2988	7zFM.exe
Token: SeSecurityPrivilege	2988	7zFM.exe
Token: SeSecurityPrivilege	2988	7zFM.exe
Token: SeDebugPrivilege	3408	WindowsServer.exe
Token: 33	3408	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	3408	WindowsServer.exe
Token: 33	3408	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	3408	WindowsServer.exe
Token: 33	3408	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	3408	WindowsServer.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2988	7zFM.exe
2988	7zFM.exe
2988	7zFM.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 2352	2988	7zFM.exe	88
PID 2988 wrote to memory of 2352	2988	7zFM.exe	88
PID 3032 wrote to memory of 3408	3032	Setup.exe	96
PID 3032 wrote to memory of 3408	3032	Setup.exe	96
PID 3032 wrote to memory of 3408	3032	Setup.exe	96
PID 3408 wrote to memory of 1712	3408	WindowsServer.exe	98
PID 3408 wrote to memory of 1712	3408	WindowsServer.exe	98
PID 3408 wrote to memory of 1712	3408	WindowsServer.exe	98

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Setup.zip"
1⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\7zOCAB1DEE7\TUTORIAL - UPDATE - 6.1.2025.txt
  2⤵
  PID:2352

C:\Users\Admin\Desktop\Setup.exe
"C:\Users\Admin\Desktop\Setup.exe"
1⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Users\Admin\AppData\Local\Temp\WindowsServer.exe
  "C:\Users\Admin\AppData\Local\Temp\WindowsServer.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:3408
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\WindowsServer.exe" "WindowsServer.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\7zOCAB1DEE7\TUTORIAL - UPDATE - 6.1.2025.txt

Filesize
460B

MD5
eb5c4b8ac6c17de9beba78927c7b395c

SHA1
4271dbf2e2fb081a699e9287c8b900e723564811

SHA256
749d26a213cd7b3880f332ca4bd7b9119d2a4ac68ffb701beda3d49be7b03ff9

SHA512
9b5a67dbc0710efa0d36c41112c8ad96ae012f294b056045802adca0e70f329b1d8f1dad005dae814359647cdbd3cd61ea5d004318d5fcac7cc75ffea872ffd0

Download Submit
C:\Users\Admin\Desktop\Setup.exe

Filesize
37KB

MD5
e3383ba53ecebb2ecb7063fcccff17dc

SHA1
cd1384e86f194f95c8939418d30c80c56c412645

SHA256
07eaa040d73e39f53851533c8c09d92cd3228d099236e3995b19b4c8a1c15ada

SHA512
563f952147c529230824ae6feaababb3ccbe7eca324d71892d2d4f68ffc0eb6eaf1edce29662c63563cd1f7c6de6e4468b35e2b96a7eb43c93aa7367c2877d34

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads