njrat | 4ab0df4beb4aaca3298b9b8f2c0211392c1e98f13223e433464d1b436edf0bef

General

Target

4ab0df4beb4aaca3298b9b8f2c0211392c1e98f13223e433464d1b436edf0befN.exe
Size

23KB
MD5

ba465955ca8eb149832d1612070e77d0
SHA1

fe32db26675018f082c83dddfff6acdf40eddeb6
SHA256

4ab0df4beb4aaca3298b9b8f2c0211392c1e98f13223e433464d1b436edf0bef
SHA512

372d7b940db44f033206a7900ffc6ccb18ab2decf1b8d31aafe5745fe97b73ea6b8a06aecc3bd25c402fb83288a55dd25cf05e4754724683a9c8ffb8890aee10
SSDEEP

384:3slUlEvOEJ8xWwYJOMiOBZEdj1567gtwi5HhbQmRvR6JZlbw8hqIusZzZ6u:oeEvwIlLMRpcnuO

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Signatures

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
4204	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	4ab0df4beb4aaca3298b9b8f2c0211392c1e98f13223e433464d1b436edf0befN.exe

Executes dropped EXE 1 IoCs

pid	Process
3868	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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0dc24807523d3cd24b54cd0996e4c49b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\0dc24807523d3cd24b54cd0996e4c49b = "\"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 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 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	4ab0df4beb4aaca3298b9b8f2c0211392c1e98f13223e433464d1b436edf0befN.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 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe
Token: 33	3868	server.exe
Token: SeIncBasePriorityPrivilege	3868	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1408 wrote to memory of 3868	1408	4ab0df4beb4aaca3298b9b8f2c0211392c1e98f13223e433464d1b436edf0befN.exe	93
PID 1408 wrote to memory of 3868	1408	4ab0df4beb4aaca3298b9b8f2c0211392c1e98f13223e433464d1b436edf0befN.exe	93
PID 1408 wrote to memory of 3868	1408	4ab0df4beb4aaca3298b9b8f2c0211392c1e98f13223e433464d1b436edf0befN.exe	93
PID 3868 wrote to memory of 4204	3868	server.exe	98
PID 3868 wrote to memory of 4204	3868	server.exe	98
PID 3868 wrote to memory of 4204	3868	server.exe	98

C:\Users\Admin\AppData\Local\Temp\4ab0df4beb4aaca3298b9b8f2c0211392c1e98f13223e433464d1b436edf0befN.exe
"C:\Users\Admin\AppData\Local\Temp\4ab0df4beb4aaca3298b9b8f2c0211392c1e98f13223e433464d1b436edf0befN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1408
- 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:3868
- - 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:4204

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
ba465955ca8eb149832d1612070e77d0

SHA1
fe32db26675018f082c83dddfff6acdf40eddeb6

SHA256
4ab0df4beb4aaca3298b9b8f2c0211392c1e98f13223e433464d1b436edf0bef

SHA512
372d7b940db44f033206a7900ffc6ccb18ab2decf1b8d31aafe5745fe97b73ea6b8a06aecc3bd25c402fb83288a55dd25cf05e4754724683a9c8ffb8890aee10

Download Submit
memory/1408-0-0x0000000074992000-0x0000000074993000-memory.dmp

Filesize
4KB

Download
memory/1408-1-0x0000000074990000-0x0000000074F41000-memory.dmp

Filesize
5.7MB

Download
memory/1408-2-0x0000000074990000-0x0000000074F41000-memory.dmp

Filesize
5.7MB

Download
memory/1408-13-0x0000000074990000-0x0000000074F41000-memory.dmp

Filesize
5.7MB

Download
memory/3868-12-0x0000000074990000-0x0000000074F41000-memory.dmp

Filesize
5.7MB

Download
memory/3868-14-0x0000000074990000-0x0000000074F41000-memory.dmp

Filesize
5.7MB

Download
memory/3868-15-0x0000000074990000-0x0000000074F41000-memory.dmp

Filesize
5.7MB

Download
memory/3868-16-0x0000000074990000-0x0000000074F41000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads