njrat | cda2a5b57e9b78fa4e70cec57ab58efd03a85f9695f114eab548cf142492bb0b

General

Target
6C6E8B10820BA453B633894E75D47E3A.exe
Size 337KB
Sample250704-e41fsaap7x
SHA256 cda2a5b57e9b78fa4e70cec57ab58efd03a85f9695f114eab548cf142492bb0b
MD5 6c6e8b10820ba453b633894e75d47e3a
SHA1 805aed4505734d9984dfdb02251d9c4b6df03e68
SHA512 6965fe7c8f01f326451e2d61e695e5325c47fa11b37daef0053502f7fde291d5a0ec4d69f7386633f05273b9d276b3d6902a8ba271bbc953eb176dbaa5715786
SSDEEP 3072:e8iCOUCCQG0//VzjaFipNv30STc/XyYUCeG6u0vzHdyQuULklZewnfgR/BhNKEzH:B+xaFip7mkvzHdyQzf/F7zVP8eYVex
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat defense_evasion discovery 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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5844	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-1-5-21-3008489981-1977616533-741913813-1000\Control Panel\International\Geo\Nation	6C6E8B10820BA453B633894E75D47E3A.exe

Executes dropped EXE 1 IoCs

pid	Process
952	Microsoft.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	6C6E8B10820BA453B633894E75D47E3A.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Microsoft.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe
Token: 33	952	Microsoft.exe
Token: SeIncBasePriorityPrivilege	952	Microsoft.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 6072 wrote to memory of 952	6072	6C6E8B10820BA453B633894E75D47E3A.exe	94
PID 6072 wrote to memory of 952	6072	6C6E8B10820BA453B633894E75D47E3A.exe	94
PID 6072 wrote to memory of 952	6072	6C6E8B10820BA453B633894E75D47E3A.exe	94
PID 952 wrote to memory of 5844	952	Microsoft.exe	97
PID 952 wrote to memory of 5844	952	Microsoft.exe	97
PID 952 wrote to memory of 5844	952	Microsoft.exe	97

C:\Users\Admin\AppData\Local\Temp\6C6E8B10820BA453B633894E75D47E3A.exe
"C:\Users\Admin\AppData\Local\Temp\6C6E8B10820BA453B633894E75D47E3A.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6072
- C:\Users\Admin\AppData\Roaming\Microsoft.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:952
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Microsoft.exe" "Microsoft.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:5844

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

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

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

1

T1562.004

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

Microsoft.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft.exe
Size 337KB
SHA256 cda2a5b57e9b78fa4e70cec57ab58efd03a85f9695f114eab548cf142492bb0b
MD5 6c6e8b10820ba453b633894e75d47e3a
SHA1 805aed4505734d9984dfdb02251d9c4b6df03e68
SHA512 6965fe7c8f01f326451e2d61e695e5325c47fa11b37daef0053502f7fde291d5a0ec4d69f7386633f05273b9d276b3d6902a8ba271bbc953eb176dbaa5715786
SSDEEP 3072:e8iCOUCCQG0//VzjaFipNv30STc/XyYUCeG6u0vzHdyQuULklZewnfgR/BhNKEzH:B+xaFip7mkvzHdyQzf/F7zVP8eYVex
MD5 SHA1 SHA512 SSDEEP

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memory/952-13-0x0000000005770000-0x0000000005780000-memory.dmp

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memory/952-14-0x00000000059D0000-0x0000000005A62000-memory.dmp

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memory/952-15-0x0000000005960000-0x000000000596A000-memory.dmp

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memory/952-16-0x0000000005C20000-0x0000000005C86000-memory.dmp

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memory/952-17-0x0000000005770000-0x0000000005780000-memory.dmp

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memory/6072-0-0x0000000000C80000-0x0000000000CDA000-memory.dmp

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memory/6072-1-0x00000000056A0000-0x00000000056B0000-memory.dmp

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memory/6072-2-0x0000000005790000-0x000000000582C000-memory.dmp

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memory/6072-3-0x0000000005EA0000-0x0000000006444000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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