njrat | 4e9e0a6041a348e713a6b919cb7f2e0754dd22cb046e1b1ef0e222543038e9ab

General

Target

Server.exe
Size

23KB
MD5

eec3e4c86729b800330a8b0312478e58
SHA1

93110b4284258f34d73a14c329623be1f1cffb9c
SHA256

4e9e0a6041a348e713a6b919cb7f2e0754dd22cb046e1b1ef0e222543038e9ab
SHA512

e0cf6aa0110de1eed199ed0c63c5622067f20347ed66a12fb8933b92935699687ecc690ca2d7146a6ceee3f0431563d53c4d988a40dfa8ea29adde5ea5a52a25
SSDEEP

384:qYmdk8XvCJrQLdRGSiEYo7Y65gPyx6BDXNRmRvR6JZlbw8hqIusZzZy3ly:9wWkti8aeRpcnuL0

Score

10^/10

njrat discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3760	netsh.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\cf2a6cabb60ab913a0c3e3caa2c47947 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4152190078-1497776152-96910572-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cf2a6cabb60ab913a0c3e3caa2c47947 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe

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 2 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	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe
Token: 33	2012	Server.exe
Token: SeIncBasePriorityPrivilege	2012	Server.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 3760	2012	Server.exe	85
PID 2012 wrote to memory of 3760	2012	Server.exe	85
PID 2012 wrote to memory of 3760	2012	Server.exe	85

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:3760

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2012-0-0x0000000074662000-0x0000000074663000-memory.dmp

Filesize
4KB

Download
memory/2012-1-0x0000000074660000-0x0000000074C11000-memory.dmp

Filesize
5.7MB

Download
memory/2012-2-0x0000000074660000-0x0000000074C11000-memory.dmp

Filesize
5.7MB

Download
memory/2012-3-0x0000000074662000-0x0000000074663000-memory.dmp

Filesize
4KB

Download
memory/2012-4-0x0000000074660000-0x0000000074C11000-memory.dmp

Filesize
5.7MB

Download
memory/2012-5-0x0000000074660000-0x0000000074C11000-memory.dmp

Filesize
5.7MB

Download
memory/2012-6-0x0000000074660000-0x0000000074C11000-memory.dmp

Filesize
5.7MB

Download
memory/2012-7-0x0000000074660000-0x0000000074C11000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads