njrat | 16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463

General

Target

16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463N.exe
Size

23KB
MD5

53c3a45091401fb4d14b205ff284d0d0
SHA1

f34fe04d0b03d209eaded90675ac891665eb89b9
SHA256

16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463
SHA512

f00b4b443a6adc1c0be027e57e32cff5c2607a97f8ab270cf6d8f01e2e159226b5701f67e1b5ff96c7cb7c12f5fefd4a17cc74148cc735d1490afbe59a96db67
SSDEEP

384:PoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIx:o7O89p2rRpcnuP

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

Processes:

netsh.exe

pid process

3860 netsh.exe

pid	process
3860	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

Processes:

16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463N.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463N.exe

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

1360 server.exe

pid	process
1360	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"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

Processes:

netsh.exe

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

Processes:

16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463N.exeserver.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463N.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

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	1360	server.exe
Token: 33	1360	server.exe
Token: SeIncBasePriorityPrivilege	1360	server.exe
Token: 33	1360	server.exe
Token: SeIncBasePriorityPrivilege	1360	server.exe
Token: 33	1360	server.exe
Token: SeIncBasePriorityPrivilege	1360	server.exe
Token: 33	1360	server.exe
Token: SeIncBasePriorityPrivilege	1360	server.exe
Token: 33	1360	server.exe
Token: SeIncBasePriorityPrivilege	1360	server.exe
Token: 33	1360	server.exe
Token: SeIncBasePriorityPrivilege	1360	server.exe
Token: 33	1360	server.exe
Token: SeIncBasePriorityPrivilege	1360	server.exe
Token: 33	1360	server.exe
Token: SeIncBasePriorityPrivilege	1360	server.exe
Token: 33	1360	server.exe
Token: SeIncBasePriorityPrivilege	1360	server.exe
Token: 33	1360	server.exe
Token: SeIncBasePriorityPrivilege	1360	server.exe
Token: 33	1360	server.exe
Token: SeIncBasePriorityPrivilege	1360	server.exe
Token: 33	1360	server.exe
Token: SeIncBasePriorityPrivilege	1360	server.exe
Token: 33	1360	server.exe
Token: SeIncBasePriorityPrivilege	1360	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463N.exeserver.exe

description	pid	process	target process
PID 512 wrote to memory of 1360	512	16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463N.exe	server.exe
PID 512 wrote to memory of 1360	512	16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463N.exe	server.exe
PID 512 wrote to memory of 1360	512	16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463N.exe	server.exe
PID 1360 wrote to memory of 3860	1360	server.exe	netsh.exe
PID 1360 wrote to memory of 3860	1360	server.exe	netsh.exe
PID 1360 wrote to memory of 3860	1360	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463N.exe
"C:\Users\Admin\AppData\Local\Temp\16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:512
- 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:1360
- - 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:3860

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
53c3a45091401fb4d14b205ff284d0d0

SHA1
f34fe04d0b03d209eaded90675ac891665eb89b9

SHA256
16e59cacb6387b9a38bbe49533edaef0633fd55a85ae572e3370985037328463

SHA512
f00b4b443a6adc1c0be027e57e32cff5c2607a97f8ab270cf6d8f01e2e159226b5701f67e1b5ff96c7cb7c12f5fefd4a17cc74148cc735d1490afbe59a96db67

Download Submit
memory/512-0-0x0000000075502000-0x0000000075503000-memory.dmp

Filesize
4KB

Download
memory/512-1-0x0000000075500000-0x0000000075AB1000-memory.dmp

Filesize
5.7MB

Download
memory/512-2-0x0000000075500000-0x0000000075AB1000-memory.dmp

Filesize
5.7MB

Download
memory/512-12-0x0000000075500000-0x0000000075AB1000-memory.dmp

Filesize
5.7MB

Download
memory/1360-13-0x0000000075500000-0x0000000075AB1000-memory.dmp

Filesize
5.7MB

Download
memory/1360-14-0x0000000075500000-0x0000000075AB1000-memory.dmp

Filesize
5.7MB

Download
memory/1360-15-0x0000000075500000-0x0000000075AB1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads