njrat | c4f718767fdcc8376f38f1bfd0b502e4e6c3de43df021b488b3f50464a8a8ce8

General

Target

c4f718767fdcc8376f38f1bfd0b502e4e6c3de43df021b488b3f50464a8a8ce8N.exe
Size

23KB
MD5

80ea2beaed01b8be5cf64157ea28a420
SHA1

675cdba93656fa2276ddec1c183e954265c183da
SHA256

c4f718767fdcc8376f38f1bfd0b502e4e6c3de43df021b488b3f50464a8a8ce8
SHA512

4c0e40476b7431d8fa90cc7a3a8079679f0b4d25e30a1de231869810969b129c9cce5cdcaec073853c7ca79d8c1d7c046d4e8823988d4b58ba105b00364a31c8
SSDEEP

384:coWtkEwn65rgjAsGipk55D16HgXakhbZD0mRvR6JZlbw8hqIusZzZIn:L7O89pErRpcnuJ

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
1888	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	c4f718767fdcc8376f38f1bfd0b502e4e6c3de43df021b488b3f50464a8a8ce8N.exe

Executes dropped EXE 1 IoCs

pid	Process
836	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\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	c4f718767fdcc8376f38f1bfd0b502e4e6c3de43df021b488b3f50464a8a8ce8N.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	836	server.exe
Token: 33	836	server.exe
Token: SeIncBasePriorityPrivilege	836	server.exe
Token: 33	836	server.exe
Token: SeIncBasePriorityPrivilege	836	server.exe
Token: 33	836	server.exe
Token: SeIncBasePriorityPrivilege	836	server.exe
Token: 33	836	server.exe
Token: SeIncBasePriorityPrivilege	836	server.exe
Token: 33	836	server.exe
Token: SeIncBasePriorityPrivilege	836	server.exe
Token: 33	836	server.exe
Token: SeIncBasePriorityPrivilege	836	server.exe
Token: 33	836	server.exe
Token: SeIncBasePriorityPrivilege	836	server.exe
Token: 33	836	server.exe
Token: SeIncBasePriorityPrivilege	836	server.exe
Token: 33	836	server.exe
Token: SeIncBasePriorityPrivilege	836	server.exe
Token: 33	836	server.exe
Token: SeIncBasePriorityPrivilege	836	server.exe
Token: 33	836	server.exe
Token: SeIncBasePriorityPrivilege	836	server.exe
Token: 33	836	server.exe
Token: SeIncBasePriorityPrivilege	836	server.exe
Token: 33	836	server.exe
Token: SeIncBasePriorityPrivilege	836	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1332 wrote to memory of 836	1332	c4f718767fdcc8376f38f1bfd0b502e4e6c3de43df021b488b3f50464a8a8ce8N.exe	84
PID 1332 wrote to memory of 836	1332	c4f718767fdcc8376f38f1bfd0b502e4e6c3de43df021b488b3f50464a8a8ce8N.exe	84
PID 1332 wrote to memory of 836	1332	c4f718767fdcc8376f38f1bfd0b502e4e6c3de43df021b488b3f50464a8a8ce8N.exe	84
PID 836 wrote to memory of 1888	836	server.exe	87
PID 836 wrote to memory of 1888	836	server.exe	87
PID 836 wrote to memory of 1888	836	server.exe	87

C:\Users\Admin\AppData\Local\Temp\c4f718767fdcc8376f38f1bfd0b502e4e6c3de43df021b488b3f50464a8a8ce8N.exe
"C:\Users\Admin\AppData\Local\Temp\c4f718767fdcc8376f38f1bfd0b502e4e6c3de43df021b488b3f50464a8a8ce8N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1332
- 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:836
- - 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:1888

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
80ea2beaed01b8be5cf64157ea28a420

SHA1
675cdba93656fa2276ddec1c183e954265c183da

SHA256
c4f718767fdcc8376f38f1bfd0b502e4e6c3de43df021b488b3f50464a8a8ce8

SHA512
4c0e40476b7431d8fa90cc7a3a8079679f0b4d25e30a1de231869810969b129c9cce5cdcaec073853c7ca79d8c1d7c046d4e8823988d4b58ba105b00364a31c8

Download Submit
memory/836-12-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/836-14-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/1332-0-0x0000000074DC2000-0x0000000074DC3000-memory.dmp

Filesize
4KB

Download
memory/1332-1-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/1332-2-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/1332-13-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads