njrat | 5449c68208969baea8135a628d27523edaad887b8f4757e29611d892881212af

General

Target

Server.exe
Size

23KB
MD5

1702a7d13a257d4d4421e07700980ab9
SHA1

6400de3b12e571415b2570b8ecbf44f9ad9be9be
SHA256

5449c68208969baea8135a628d27523edaad887b8f4757e29611d892881212af
SHA512

a3e11b0cec2b565923aec7a0d3d210ca6d6c4c6abf6c1308e9f7712824947081d036ee82bc405c59f34f39b7adbc86487a832ac378ac8520149ecc397a52ef41
SSDEEP

384:7sqS+ER6vRKXGYKRWVSujUtX9w6Dglo61Z5DVmRvR6JZlbw8hqIusZzZxlNW:Qf65K2Yf1jKRpcnuUq

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 2 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4452	netsh.exe
4484	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\USER\S-1-5-21-2319007114-3335580451-2147236418-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\58e766d3ca8017f8bd7d37d2b9bad0e2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\58e766d3ca8017f8bd7d37d2b9bad0e2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
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
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1832	cmd.exe
1180	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1180	PING.EXE

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	4836	Server.exe
Token: 33	4836	Server.exe
Token: SeIncBasePriorityPrivilege	4836	Server.exe
Token: 33	4836	Server.exe
Token: SeIncBasePriorityPrivilege	4836	Server.exe
Token: 33	4836	Server.exe
Token: SeIncBasePriorityPrivilege	4836	Server.exe
Token: 33	4836	Server.exe
Token: SeIncBasePriorityPrivilege	4836	Server.exe
Token: 33	4836	Server.exe
Token: SeIncBasePriorityPrivilege	4836	Server.exe
Token: 33	4836	Server.exe
Token: SeIncBasePriorityPrivilege	4836	Server.exe
Token: 33	4836	Server.exe
Token: SeIncBasePriorityPrivilege	4836	Server.exe
Token: 33	4836	Server.exe
Token: SeIncBasePriorityPrivilege	4836	Server.exe
Token: 33	4836	Server.exe
Token: SeIncBasePriorityPrivilege	4836	Server.exe
Token: 33	4836	Server.exe
Token: SeIncBasePriorityPrivilege	4836	Server.exe
Token: 33	4836	Server.exe
Token: SeIncBasePriorityPrivilege	4836	Server.exe
Token: 33	4836	Server.exe
Token: SeIncBasePriorityPrivilege	4836	Server.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4836 wrote to memory of 4452	4836	Server.exe	88
PID 4836 wrote to memory of 4452	4836	Server.exe	88
PID 4836 wrote to memory of 4452	4836	Server.exe	88
PID 4836 wrote to memory of 4484	4836	Server.exe	94
PID 4836 wrote to memory of 4484	4836	Server.exe	94
PID 4836 wrote to memory of 4484	4836	Server.exe	94
PID 4836 wrote to memory of 1832	4836	Server.exe	95
PID 4836 wrote to memory of 1832	4836	Server.exe	95
PID 4836 wrote to memory of 1832	4836	Server.exe	95
PID 1832 wrote to memory of 1180	1832	cmd.exe	98
PID 1832 wrote to memory of 1180	1832	cmd.exe	98
PID 1832 wrote to memory of 1180	1832	cmd.exe	98

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:4836
- 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:4452
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe"
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:4484
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 0 -n 2 & del "C:\Users\Admin\AppData\Local\Temp\Server.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1832
- - C:\Windows\SysWOW64\PING.EXE
    ping 0 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1180

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

Remote System Discovery

1

T1018

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4836-0-0x0000000074CC2000-0x0000000074CC3000-memory.dmp

Filesize
4KB

Download
memory/4836-1-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download
memory/4836-2-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download
memory/4836-3-0x0000000074CC2000-0x0000000074CC3000-memory.dmp

Filesize
4KB

Download
memory/4836-4-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download
memory/4836-5-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download
memory/4836-6-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download
memory/4836-7-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download
memory/4836-9-0x0000000074CC0000-0x0000000075271000-memory.dmp

Filesize
5.7MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads