njrat | f8dec0f23808281a89b159c36c032fa81ef279fa64cc39c30ad4f3d253cb514a

General

Target

27bf4c111c9278252bbe6a601df25d20N.exe
Size

23KB
MD5

27bf4c111c9278252bbe6a601df25d20
SHA1

3fcaf1ccc268897203806499aab83286162c26a3
SHA256

f8dec0f23808281a89b159c36c032fa81ef279fa64cc39c30ad4f3d253cb514a
SHA512

009c8eb45b49457171b8047fcae76916713718b8923689414be4f3287d780e36ec60dfdd04de7e23d1ba4aa64ad9ea06aa6ee7eb10974ad0a5e1d4b5d45074a8
SSDEEP

384:IslUlEvOEJ8xWwYJOMiOBZEdj1567gtwi5HhbQmRvR6JZlbw8hqIusZzZ6A:xeEvwIlLMRpcnug

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

Signatures

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
2940	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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	27bf4c111c9278252bbe6a601df25d20N.exe

Executes dropped EXE 1 IoCs

pid	Process
2484	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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0dc24807523d3cd24b54cd0996e4c49b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\0dc24807523d3cd24b54cd0996e4c49b = "\"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	27bf4c111c9278252bbe6a601df25d20N.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	2484	server.exe
Token: 33	2484	server.exe
Token: SeIncBasePriorityPrivilege	2484	server.exe
Token: 33	2484	server.exe
Token: SeIncBasePriorityPrivilege	2484	server.exe
Token: 33	2484	server.exe
Token: SeIncBasePriorityPrivilege	2484	server.exe
Token: 33	2484	server.exe
Token: SeIncBasePriorityPrivilege	2484	server.exe
Token: 33	2484	server.exe
Token: SeIncBasePriorityPrivilege	2484	server.exe
Token: 33	2484	server.exe
Token: SeIncBasePriorityPrivilege	2484	server.exe
Token: 33	2484	server.exe
Token: SeIncBasePriorityPrivilege	2484	server.exe
Token: 33	2484	server.exe
Token: SeIncBasePriorityPrivilege	2484	server.exe
Token: 33	2484	server.exe
Token: SeIncBasePriorityPrivilege	2484	server.exe
Token: 33	2484	server.exe
Token: SeIncBasePriorityPrivilege	2484	server.exe
Token: 33	2484	server.exe
Token: SeIncBasePriorityPrivilege	2484	server.exe
Token: 33	2484	server.exe
Token: SeIncBasePriorityPrivilege	2484	server.exe
Token: 33	2484	server.exe
Token: SeIncBasePriorityPrivilege	2484	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 2484	1980	27bf4c111c9278252bbe6a601df25d20N.exe	87
PID 1980 wrote to memory of 2484	1980	27bf4c111c9278252bbe6a601df25d20N.exe	87
PID 1980 wrote to memory of 2484	1980	27bf4c111c9278252bbe6a601df25d20N.exe	87
PID 2484 wrote to memory of 2940	2484	server.exe	88
PID 2484 wrote to memory of 2940	2484	server.exe	88
PID 2484 wrote to memory of 2940	2484	server.exe	88

C:\Users\Admin\AppData\Local\Temp\27bf4c111c9278252bbe6a601df25d20N.exe
"C:\Users\Admin\AppData\Local\Temp\27bf4c111c9278252bbe6a601df25d20N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1980
- 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:2484
- - 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:2940

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
27bf4c111c9278252bbe6a601df25d20

SHA1
3fcaf1ccc268897203806499aab83286162c26a3

SHA256
f8dec0f23808281a89b159c36c032fa81ef279fa64cc39c30ad4f3d253cb514a

SHA512
009c8eb45b49457171b8047fcae76916713718b8923689414be4f3287d780e36ec60dfdd04de7e23d1ba4aa64ad9ea06aa6ee7eb10974ad0a5e1d4b5d45074a8

Download Submit
memory/1980-0-0x00000000748C2000-0x00000000748C3000-memory.dmp

Filesize
4KB

Download
memory/1980-1-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/1980-2-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/1980-12-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/2484-13-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/2484-14-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/2484-15-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/2484-16-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads