njrat | 5669e32b0b364d4576716c0e516966599447fcb5494d3361d13f241dcffe21b3

General

Target

5669e32b0b364d4576716c0e516966599447fcb5494d3361d13f241dcffe21b3N.exe
Size

23KB
MD5

6c6e8736a2cbaa7896ef92b28bc657f0
SHA1

3bedf6cf7a0ff2f8f2b3b6ba001898d4d3aa8078
SHA256

5669e32b0b364d4576716c0e516966599447fcb5494d3361d13f241dcffe21b3
SHA512

b845fdce52c95d67093a2500928e2f725b3fbdb6bd5fc704964fd4c542d635ad92264424c7fe7e05c9f3669795beef62c810872a959cad1e6ec426d09568d162
SSDEEP

384:moWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZC6:Z7O89p2rRpcnum

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
3896	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	5669e32b0b364d4576716c0e516966599447fcb5494d3361d13f241dcffe21b3N.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2524e925ffa79acc0b289930a97c6212.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2524e925ffa79acc0b289930a97c6212.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
4468	server.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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2524e925ffa79acc0b289930a97c6212 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\2524e925ffa79acc0b289930a97c6212 = "\"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 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

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	5669e32b0b364d4576716c0e516966599447fcb5494d3361d13f241dcffe21b3N.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 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4468	server.exe
Token: 33	4468	server.exe
Token: SeIncBasePriorityPrivilege	4468	server.exe
Token: 33	4468	server.exe
Token: SeIncBasePriorityPrivilege	4468	server.exe
Token: 33	4468	server.exe
Token: SeIncBasePriorityPrivilege	4468	server.exe
Token: 33	4468	server.exe
Token: SeIncBasePriorityPrivilege	4468	server.exe
Token: 33	4468	server.exe
Token: SeIncBasePriorityPrivilege	4468	server.exe
Token: 33	4468	server.exe
Token: SeIncBasePriorityPrivilege	4468	server.exe
Token: 33	4468	server.exe
Token: SeIncBasePriorityPrivilege	4468	server.exe
Token: 33	4468	server.exe
Token: SeIncBasePriorityPrivilege	4468	server.exe
Token: 33	4468	server.exe
Token: SeIncBasePriorityPrivilege	4468	server.exe
Token: 33	4468	server.exe
Token: SeIncBasePriorityPrivilege	4468	server.exe
Token: 33	4468	server.exe
Token: SeIncBasePriorityPrivilege	4468	server.exe
Token: 33	4468	server.exe
Token: SeIncBasePriorityPrivilege	4468	server.exe
Token: 33	4468	server.exe
Token: SeIncBasePriorityPrivilege	4468	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 684 wrote to memory of 4468	684	5669e32b0b364d4576716c0e516966599447fcb5494d3361d13f241dcffe21b3N.exe	82
PID 684 wrote to memory of 4468	684	5669e32b0b364d4576716c0e516966599447fcb5494d3361d13f241dcffe21b3N.exe	82
PID 684 wrote to memory of 4468	684	5669e32b0b364d4576716c0e516966599447fcb5494d3361d13f241dcffe21b3N.exe	82
PID 4468 wrote to memory of 3896	4468	server.exe	87
PID 4468 wrote to memory of 3896	4468	server.exe	87
PID 4468 wrote to memory of 3896	4468	server.exe	87

C:\Users\Admin\AppData\Local\Temp\5669e32b0b364d4576716c0e516966599447fcb5494d3361d13f241dcffe21b3N.exe
"C:\Users\Admin\AppData\Local\Temp\5669e32b0b364d4576716c0e516966599447fcb5494d3361d13f241dcffe21b3N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:684
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.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:4468
- - 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:3896

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

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

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
6c6e8736a2cbaa7896ef92b28bc657f0

SHA1
3bedf6cf7a0ff2f8f2b3b6ba001898d4d3aa8078

SHA256
5669e32b0b364d4576716c0e516966599447fcb5494d3361d13f241dcffe21b3

SHA512
b845fdce52c95d67093a2500928e2f725b3fbdb6bd5fc704964fd4c542d635ad92264424c7fe7e05c9f3669795beef62c810872a959cad1e6ec426d09568d162

Download Submit
memory/684-0-0x0000000074EB2000-0x0000000074EB3000-memory.dmp

Filesize
4KB

Download
memory/684-1-0x0000000074EB0000-0x0000000075461000-memory.dmp

Filesize
5.7MB

Download
memory/684-2-0x0000000074EB0000-0x0000000075461000-memory.dmp

Filesize
5.7MB

Download
memory/684-12-0x0000000074EB0000-0x0000000075461000-memory.dmp

Filesize
5.7MB

Download
memory/4468-13-0x0000000074EB0000-0x0000000075461000-memory.dmp

Filesize
5.7MB

Download
memory/4468-14-0x0000000074EB0000-0x0000000075461000-memory.dmp

Filesize
5.7MB

Download
memory/4468-16-0x0000000074EB0000-0x0000000075461000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads