njrat | ca3e9e6c33135f98a0d639a6fc26ffd5bcf3919ea044d9bd5f863af89d0de30b

General

Target

ca3e9e6c33135f98a0d639a6fc26ffd5bcf3919ea044d9bd5f863af89d0de30bN.exe
Size

23KB
MD5

6e6ae6e5074ef846bbfa8e67be302d80
SHA1

79713ad235c4193f13da38ad79038149c3e0e6c4
SHA256

ca3e9e6c33135f98a0d639a6fc26ffd5bcf3919ea044d9bd5f863af89d0de30b
SHA512

43aef121630aa9ffc123f485c874a750f3703ad6347665b556792d619cdadb115efbc998527c1ce2c4d07a93a61a587ba7fd5b7e3bc6758a8868535e3fbc5cdc
SSDEEP

384:eoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIL:R7O89p2rRpcnut

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

pid	Process
4944	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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	ca3e9e6c33135f98a0d639a6fc26ffd5bcf3919ea044d9bd5f863af89d0de30bN.exe

Executes dropped EXE 1 IoCs

pid	Process
3920	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-1-5-21-940901362-3608833189-1915618603-1000\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

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	ca3e9e6c33135f98a0d639a6fc26ffd5bcf3919ea044d9bd5f863af89d0de30bN.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	3920	server.exe
Token: 33	3920	server.exe
Token: SeIncBasePriorityPrivilege	3920	server.exe
Token: 33	3920	server.exe
Token: SeIncBasePriorityPrivilege	3920	server.exe
Token: 33	3920	server.exe
Token: SeIncBasePriorityPrivilege	3920	server.exe
Token: 33	3920	server.exe
Token: SeIncBasePriorityPrivilege	3920	server.exe
Token: 33	3920	server.exe
Token: SeIncBasePriorityPrivilege	3920	server.exe
Token: 33	3920	server.exe
Token: SeIncBasePriorityPrivilege	3920	server.exe
Token: 33	3920	server.exe
Token: SeIncBasePriorityPrivilege	3920	server.exe
Token: 33	3920	server.exe
Token: SeIncBasePriorityPrivilege	3920	server.exe
Token: 33	3920	server.exe
Token: SeIncBasePriorityPrivilege	3920	server.exe
Token: 33	3920	server.exe
Token: SeIncBasePriorityPrivilege	3920	server.exe
Token: 33	3920	server.exe
Token: SeIncBasePriorityPrivilege	3920	server.exe
Token: 33	3920	server.exe
Token: SeIncBasePriorityPrivilege	3920	server.exe
Token: 33	3920	server.exe
Token: SeIncBasePriorityPrivilege	3920	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 3920	2032	ca3e9e6c33135f98a0d639a6fc26ffd5bcf3919ea044d9bd5f863af89d0de30bN.exe	84
PID 2032 wrote to memory of 3920	2032	ca3e9e6c33135f98a0d639a6fc26ffd5bcf3919ea044d9bd5f863af89d0de30bN.exe	84
PID 2032 wrote to memory of 3920	2032	ca3e9e6c33135f98a0d639a6fc26ffd5bcf3919ea044d9bd5f863af89d0de30bN.exe	84
PID 3920 wrote to memory of 4944	3920	server.exe	87
PID 3920 wrote to memory of 4944	3920	server.exe	87
PID 3920 wrote to memory of 4944	3920	server.exe	87

C:\Users\Admin\AppData\Local\Temp\ca3e9e6c33135f98a0d639a6fc26ffd5bcf3919ea044d9bd5f863af89d0de30bN.exe
"C:\Users\Admin\AppData\Local\Temp\ca3e9e6c33135f98a0d639a6fc26ffd5bcf3919ea044d9bd5f863af89d0de30bN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2032
- 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:3920
- - 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:4944

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
6e6ae6e5074ef846bbfa8e67be302d80

SHA1
79713ad235c4193f13da38ad79038149c3e0e6c4

SHA256
ca3e9e6c33135f98a0d639a6fc26ffd5bcf3919ea044d9bd5f863af89d0de30b

SHA512
43aef121630aa9ffc123f485c874a750f3703ad6347665b556792d619cdadb115efbc998527c1ce2c4d07a93a61a587ba7fd5b7e3bc6758a8868535e3fbc5cdc

Download Submit
memory/2032-0-0x0000000074B42000-0x0000000074B43000-memory.dmp

Filesize
4KB

Download
memory/2032-1-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/2032-2-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/2032-12-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/3920-13-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/3920-14-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download
memory/3920-15-0x0000000074B40000-0x00000000750F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads