njrat | 525209de288e36bab56d3a19446249ffd067c8757b5d5870daa6a782b9567e74

Analysis

max time kernel
154s
max time network
167s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:12

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General

Target

6b5428dd828c35d7783578dcbf39f9c1.exe
Size

23KB
MD5

6b5428dd828c35d7783578dcbf39f9c1
SHA1

c0b92a72a6c1640e29d1705fc5533b75bb2a2220
SHA256

8f55442c491081691e0a713840813490aee9e3fb62a2d2d24c1c98f879dc7610
SHA512

e62049e6d4ce1dac983978b01fe2224fd0959f6fca08dd04024fe688da26bdd9301ebd0c86e8cde08169d786b33932815359078660cad49eab6a89216e5f28e7
SSDEEP

384:AsqS+ER6vRKXGYKRWVSujUtX9w6Dglo61Z5DVmRvR6JZlbw8hqIusZzZIiF:Xf65K2Yf1jKRpcnuy

Score

10^/10

njrat hacked defense_evasion discovery persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

karar.zapto.org:5552

Mutex

3dbbe2f6f55a97d83ab7d4bc110d85ae

Attributes

reg_key
3dbbe2f6f55a97d83ab7d4bc110d85ae
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
1720	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2912	server.exe

Loads dropped DLL 1 IoCs

pid	Process
2124	6b5428dd828c35d7783578dcbf39f9c1.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\3dbbe2f6f55a97d83ab7d4bc110d85ae = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\3dbbe2f6f55a97d83ab7d4bc110d85ae = "\"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	6b5428dd828c35d7783578dcbf39f9c1.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 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2912	2124	6b5428dd828c35d7783578dcbf39f9c1.exe	29
PID 2124 wrote to memory of 2912	2124	6b5428dd828c35d7783578dcbf39f9c1.exe	29
PID 2124 wrote to memory of 2912	2124	6b5428dd828c35d7783578dcbf39f9c1.exe	29
PID 2124 wrote to memory of 2912	2124	6b5428dd828c35d7783578dcbf39f9c1.exe	29
PID 2912 wrote to memory of 1720	2912	server.exe	30
PID 2912 wrote to memory of 1720	2912	server.exe	30
PID 2912 wrote to memory of 1720	2912	server.exe	30
PID 2912 wrote to memory of 1720	2912	server.exe	30

C:\Users\Admin\AppData\Local\Temp\6b5428dd828c35d7783578dcbf39f9c1.exe
"C:\Users\Admin\AppData\Local\Temp\6b5428dd828c35d7783578dcbf39f9c1.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- 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:2912
- - 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:1720

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
6b5428dd828c35d7783578dcbf39f9c1

SHA1
c0b92a72a6c1640e29d1705fc5533b75bb2a2220

SHA256
8f55442c491081691e0a713840813490aee9e3fb62a2d2d24c1c98f879dc7610

SHA512
e62049e6d4ce1dac983978b01fe2224fd0959f6fca08dd04024fe688da26bdd9301ebd0c86e8cde08169d786b33932815359078660cad49eab6a89216e5f28e7

Download Submit
memory/2124-0-0x00000000745E1000-0x00000000745E2000-memory.dmp

Filesize
4KB

Download
memory/2124-1-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2124-2-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2124-12-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2124-10-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2912-11-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2912-13-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2912-14-0x00000000745E0000-0x0000000074B8B000-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