njrat | 76e7d47eb1ab002d0536d9c2e073eb9286c9ce78aff2d9ac042e7c01916a2712

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
17-01-2025 21:39

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General

Target

Setup/Setup.exe
Size

37KB
MD5

e3383ba53ecebb2ecb7063fcccff17dc
SHA1

cd1384e86f194f95c8939418d30c80c56c412645
SHA256

07eaa040d73e39f53851533c8c09d92cd3228d099236e3995b19b4c8a1c15ada
SHA512

563f952147c529230824ae6feaababb3ccbe7eca324d71892d2d4f68ffc0eb6eaf1edce29662c63563cd1f7c6de6e4468b35e2b96a7eb43c93aa7367c2877d34
SSDEEP

384:LpRWUiDZblmJEpRGyEff1PNN0CYSmkhrAF+rMRTyN/0L+EcoinblneHQM3epzXPL:9R6HpR9Eff1P0Clm8rM+rMRa8NuxZt

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

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
2812	netsh.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 1 IoCs

pid	Process
1416	WindowsServer.exe

Loads dropped DLL 1 IoCs

pid	Process
2508	Setup.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-1-5-21-2703099537-420551529-3771253338-1000\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

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe
Token: 33	1416	WindowsServer.exe
Token: SeIncBasePriorityPrivilege	1416	WindowsServer.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 1416	2508	Setup.exe	30
PID 2508 wrote to memory of 1416	2508	Setup.exe	30
PID 2508 wrote to memory of 1416	2508	Setup.exe	30
PID 2508 wrote to memory of 1416	2508	Setup.exe	30
PID 1416 wrote to memory of 2812	1416	WindowsServer.exe	31
PID 1416 wrote to memory of 2812	1416	WindowsServer.exe	31
PID 1416 wrote to memory of 2812	1416	WindowsServer.exe	31
PID 1416 wrote to memory of 2812	1416	WindowsServer.exe	31

C:\Users\Admin\AppData\Local\Temp\Setup\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup\Setup.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2508
- 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:1416
- - 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:2812

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

\Users\Admin\AppData\Local\Temp\WindowsServer.exe

Filesize
37KB

MD5
e3383ba53ecebb2ecb7063fcccff17dc

SHA1
cd1384e86f194f95c8939418d30c80c56c412645

SHA256
07eaa040d73e39f53851533c8c09d92cd3228d099236e3995b19b4c8a1c15ada

SHA512
563f952147c529230824ae6feaababb3ccbe7eca324d71892d2d4f68ffc0eb6eaf1edce29662c63563cd1f7c6de6e4468b35e2b96a7eb43c93aa7367c2877d34

Download Submit
memory/1416-11-0x0000000074AA0000-0x000000007504B000-memory.dmp

Filesize
5.7MB

Download
memory/1416-12-0x0000000074AA0000-0x000000007504B000-memory.dmp

Filesize
5.7MB

Download
memory/1416-14-0x0000000074AA0000-0x000000007504B000-memory.dmp

Filesize
5.7MB

Download
memory/2508-0-0x0000000074AA1000-0x0000000074AA2000-memory.dmp

Filesize
4KB

Download
memory/2508-1-0x0000000074AA0000-0x000000007504B000-memory.dmp

Filesize
5.7MB

Download
memory/2508-2-0x0000000074AA0000-0x000000007504B000-memory.dmp

Filesize
5.7MB

Download
memory/2508-10-0x0000000074AA0000-0x000000007504B000-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