njrat | 7f1beb32d0565e8ebe9db45b1bc9a29b8fe6f2cfb7f17605bd2f6ec40f761b89

Analysis

max time kernel
150s
max time network
125s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:33

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General

Target

5aa23263dd63c1541c3d7e776e5f8f98.exe
Size

23KB
MD5

5aa23263dd63c1541c3d7e776e5f8f98
SHA1

221c3c6828d94ae6ed68aa50839a6c91f527f837
SHA256

1746682b55ba4fd89d47c53502abd6fcba269e6a7a7161eb381cd3ff06f52f09
SHA512

06edb2a293817db322c319c3ab879c16f6e945fe1faa26e688b4d086366a585b13d47061fc10b1bb5af2e737866a6d03fd16d5953cacb4360d9c42a088f68c07
SSDEEP

384:xk8aLWS0dABLYVq6RxP8MDFF09vK563gRMmJKUv0mRvR6JZlbw8hqIusZzZ8kY:5Xcwt3tRpcnuJN

Score

10^/10

njrat hacked defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

127.0.0.1:5552

Mutex

279f6960ed84a752570aca7fb2dc1552

Attributes

reg_key
279f6960ed84a752570aca7fb2dc1552
splitter
|'|'|

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
2972	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2448	server.exe

Loads dropped DLL 1 IoCs

pid	Process
2128	5aa23263dd63c1541c3d7e776e5f8f98.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-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.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	5aa23263dd63c1541c3d7e776e5f8f98.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe
Token: 33	2448	server.exe
Token: SeIncBasePriorityPrivilege	2448	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2448	2128	5aa23263dd63c1541c3d7e776e5f8f98.exe	30
PID 2128 wrote to memory of 2448	2128	5aa23263dd63c1541c3d7e776e5f8f98.exe	30
PID 2128 wrote to memory of 2448	2128	5aa23263dd63c1541c3d7e776e5f8f98.exe	30
PID 2128 wrote to memory of 2448	2128	5aa23263dd63c1541c3d7e776e5f8f98.exe	30
PID 2448 wrote to memory of 2972	2448	server.exe	32
PID 2448 wrote to memory of 2972	2448	server.exe	32
PID 2448 wrote to memory of 2972	2448	server.exe	32
PID 2448 wrote to memory of 2972	2448	server.exe	32

C:\Users\Admin\AppData\Local\Temp\5aa23263dd63c1541c3d7e776e5f8f98.exe
"C:\Users\Admin\AppData\Local\Temp\5aa23263dd63c1541c3d7e776e5f8f98.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2448
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2972

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

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
23KB

MD5
5aa23263dd63c1541c3d7e776e5f8f98

SHA1
221c3c6828d94ae6ed68aa50839a6c91f527f837

SHA256
1746682b55ba4fd89d47c53502abd6fcba269e6a7a7161eb381cd3ff06f52f09

SHA512
06edb2a293817db322c319c3ab879c16f6e945fe1faa26e688b4d086366a585b13d47061fc10b1bb5af2e737866a6d03fd16d5953cacb4360d9c42a088f68c07

Download Submit
memory/2128-0-0x0000000074221000-0x0000000074222000-memory.dmp

Filesize
4KB

Download
memory/2128-1-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2128-2-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2128-10-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2448-12-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2448-11-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2448-13-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2448-14-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads