njrat | 4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6f

General

Target

4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6fN.exe
Size

23KB
MD5

c6709a915c0a385a6c10eae5dbce2cc0
SHA1

0ddd4094a4901c977fdf9dd2d6362e515fe79146
SHA256

4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6f
SHA512

7bf847e034e36c96a75fbf490cb2fb25702d80230c46d6f6a4efa1ce7502673a3de84a4a9801096bdc026fb4ce18486d03e70232fbc1d14fa294815f4280f4be
SSDEEP

384:IoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI3:37O89p2rRpcnuZ

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
2936	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:

4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6fN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6fN.exe

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid	Process
2628	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-1-5-21-2045521122-590294423-3465680274-1000\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 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

Processes:

4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6fN.exeserver.exenetsh.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6fN.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	2628	server.exe
Token: 33	2628	server.exe
Token: SeIncBasePriorityPrivilege	2628	server.exe
Token: 33	2628	server.exe
Token: SeIncBasePriorityPrivilege	2628	server.exe
Token: 33	2628	server.exe
Token: SeIncBasePriorityPrivilege	2628	server.exe
Token: 33	2628	server.exe
Token: SeIncBasePriorityPrivilege	2628	server.exe
Token: 33	2628	server.exe
Token: SeIncBasePriorityPrivilege	2628	server.exe
Token: 33	2628	server.exe
Token: SeIncBasePriorityPrivilege	2628	server.exe
Token: 33	2628	server.exe
Token: SeIncBasePriorityPrivilege	2628	server.exe
Token: 33	2628	server.exe
Token: SeIncBasePriorityPrivilege	2628	server.exe
Token: 33	2628	server.exe
Token: SeIncBasePriorityPrivilege	2628	server.exe
Token: 33	2628	server.exe
Token: SeIncBasePriorityPrivilege	2628	server.exe
Token: 33	2628	server.exe
Token: SeIncBasePriorityPrivilege	2628	server.exe
Token: 33	2628	server.exe
Token: SeIncBasePriorityPrivilege	2628	server.exe
Token: 33	2628	server.exe
Token: SeIncBasePriorityPrivilege	2628	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6fN.exeserver.exe

description	pid	Process	procid_target
PID 880 wrote to memory of 2628	880	4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6fN.exe	87
PID 880 wrote to memory of 2628	880	4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6fN.exe	87
PID 880 wrote to memory of 2628	880	4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6fN.exe	87
PID 2628 wrote to memory of 2936	2628	server.exe	90
PID 2628 wrote to memory of 2936	2628	server.exe	90
PID 2628 wrote to memory of 2936	2628	server.exe	90

C:\Users\Admin\AppData\Local\Temp\4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6fN.exe
"C:\Users\Admin\AppData\Local\Temp\4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6fN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:880
- 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:2628
- - 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:2936

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
c6709a915c0a385a6c10eae5dbce2cc0

SHA1
0ddd4094a4901c977fdf9dd2d6362e515fe79146

SHA256
4309c147d9b34dbf0853e020c164902d514f92f770c362dfa3c044802fae8e6f

SHA512
7bf847e034e36c96a75fbf490cb2fb25702d80230c46d6f6a4efa1ce7502673a3de84a4a9801096bdc026fb4ce18486d03e70232fbc1d14fa294815f4280f4be

Download Submit
memory/880-0-0x0000000074FA2000-0x0000000074FA3000-memory.dmp

Filesize
4KB

Download
memory/880-1-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/880-2-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/880-13-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/2628-12-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/2628-14-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/2628-15-0x0000000074FA0000-0x0000000075551000-memory.dmp

Filesize
5.7MB

Download
memory/2628-16-0x0000000074FA0000-0x0000000075551000-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