njrat | 665c9c1e0fc46f97e902ac8046d9719661dd4b2e0a685b5e041c9a66c584c1b1

General

Target

665c9c1e0fc46f97e902ac8046d9719661dd4b2e0a685b5e041c9a66c584c1b1N.exe
Size

23KB
MD5

4abf570a817c250b77a9b4fce234d4f0
SHA1

ab826fabada5c2893043c8ad2daa321032d85727
SHA256

665c9c1e0fc46f97e902ac8046d9719661dd4b2e0a685b5e041c9a66c584c1b1
SHA512

a507011626379501e3b876249c82be446298b394993a70d66cf03205607233781414170d1042e0faa6efb67971b07c4b9dd41ec30648e6f5e0eec0508a153425
SSDEEP

384:5c68yCaUVIhboNgfEimfkNzayS06vg5UhcpxH7ndmRvR6JZlbw8hqIusZzZBH:t873kgNfoaf6ARpcnuq

Score

10^/10

njrat pa discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

PA

C2

127.0.0.1:5552

Mutex

e229ec82a5ec02373072d0375052096f

Attributes

reg_key
e229ec82a5ec02373072d0375052096f
splitter
|'|'|

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
2772	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
3032	server.exe

Loads dropped DLL 1 IoCs

pid	Process
2328	665c9c1e0fc46f97e902ac8046d9719661dd4b2e0a685b5e041c9a66c584c1b1N.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\e229ec82a5ec02373072d0375052096f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\e229ec82a5ec02373072d0375052096f = "\"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 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	665c9c1e0fc46f97e902ac8046d9719661dd4b2e0a685b5e041c9a66c584c1b1N.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	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 3032	2328	665c9c1e0fc46f97e902ac8046d9719661dd4b2e0a685b5e041c9a66c584c1b1N.exe	31
PID 2328 wrote to memory of 3032	2328	665c9c1e0fc46f97e902ac8046d9719661dd4b2e0a685b5e041c9a66c584c1b1N.exe	31
PID 2328 wrote to memory of 3032	2328	665c9c1e0fc46f97e902ac8046d9719661dd4b2e0a685b5e041c9a66c584c1b1N.exe	31
PID 2328 wrote to memory of 3032	2328	665c9c1e0fc46f97e902ac8046d9719661dd4b2e0a685b5e041c9a66c584c1b1N.exe	31
PID 3032 wrote to memory of 2772	3032	server.exe	32
PID 3032 wrote to memory of 2772	3032	server.exe	32
PID 3032 wrote to memory of 2772	3032	server.exe	32
PID 3032 wrote to memory of 2772	3032	server.exe	32

C:\Users\Admin\AppData\Local\Temp\665c9c1e0fc46f97e902ac8046d9719661dd4b2e0a685b5e041c9a66c584c1b1N.exe
"C:\Users\Admin\AppData\Local\Temp\665c9c1e0fc46f97e902ac8046d9719661dd4b2e0a685b5e041c9a66c584c1b1N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2328
- 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:3032
- - 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:2772

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 Information Discovery

1

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

\Users\Admin\AppData\Local\Temp\server.exe

Filesize
23KB

MD5
4abf570a817c250b77a9b4fce234d4f0

SHA1
ab826fabada5c2893043c8ad2daa321032d85727

SHA256
665c9c1e0fc46f97e902ac8046d9719661dd4b2e0a685b5e041c9a66c584c1b1

SHA512
a507011626379501e3b876249c82be446298b394993a70d66cf03205607233781414170d1042e0faa6efb67971b07c4b9dd41ec30648e6f5e0eec0508a153425

Download Submit
memory/2328-0-0x0000000074F21000-0x0000000074F22000-memory.dmp

Filesize
4KB

Download
memory/2328-2-0x0000000074F20000-0x00000000754CB000-memory.dmp

Filesize
5.7MB

Download
memory/2328-1-0x0000000074F20000-0x00000000754CB000-memory.dmp

Filesize
5.7MB

Download
memory/2328-11-0x0000000074F20000-0x00000000754CB000-memory.dmp

Filesize
5.7MB

Download
memory/3032-10-0x0000000074F20000-0x00000000754CB000-memory.dmp

Filesize
5.7MB

Download
memory/3032-12-0x0000000074F20000-0x00000000754CB000-memory.dmp

Filesize
5.7MB

Download
memory/3032-13-0x0000000074F20000-0x00000000754CB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads