njrat | b137dd0912a2ba2e352d1dca4bb950969a1c8bb574c013ba7080e3c1c37280af

Resubmissions

06/08/2026, 03:47

260806-eckk9adj3y10

03/08/2026, 05:12

260803-fv7deace3610

Analysis

user interaction
yes
max time kernel
24s
max time network
23s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
06/08/2026, 03:47

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General

Target
Server.exe
Size 23KB
Sample260806-eckk9adj3y
SHA256 b137dd0912a2ba2e352d1dca4bb950969a1c8bb574c013ba7080e3c1c37280af
MD5 5c076b7cd4229d9a43d1f692629d6ddd
SHA1 fc9331cb9f0af5ab9f05410cdff68ab8a38bb8cf
SHA512 fa4ddba7dc75b88cc4fad44052aede30baa222078f2a1a8cb2edb97922e5fc35295f55ed2eb36f79561f2303a3c381af084b453c31420b269cb0f29613dc54d6
SSDEEP 384:f+n2650N3qZbATcjRGC5Eo9D46BgnqUhay1ZmRvR6JZlbw8hqIusZzZTmty:4m+71d5XRpcnupc
TLSH
T132B22A4E3FB98856C4BC177486A6965003B0A1870413EE2FCCC554DBAFB3AD92D4CAF9
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery njrat persistence privilege_escalation trojan

Malware Config

Signatures

Family: 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
4704	netsh.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-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0237dc3e7dcefa6aefa82bdf90259f2e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\0237dc3e7dcefa6aefa82bdf90259f2e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe

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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	736	Server.exe
Token: 33	736	Server.exe
Token: SeIncBasePriorityPrivilege	736	Server.exe
Token: 33	736	Server.exe
Token: SeIncBasePriorityPrivilege	736	Server.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 736 wrote to memory of 4704	736	Server.exe	87

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:736
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:4704

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe" ..
1⤵
- System Location Discovery: System Language Discovery
PID:2056