njrat | a642b23358d9dafb9bf499669eba69230c01a66c63fcf7f50f6f517cd5216d46

Analysis

max time kernel
149s
max time network
140s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260629-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
01/07/2026, 15:55

Target
Server.exe
Size 23KB
Sample260701-tcvtjsbv7s
SHA256 a642b23358d9dafb9bf499669eba69230c01a66c63fcf7f50f6f517cd5216d46
MD5 7e538633ff4ce072f1b42ebac9f3d500
SHA1 36fa49f9fb7833072bec6fd763fbf4fde49371b0
SHA512 7a69908e4e1528c3c986dacc485777114d5079f4e0b3a748fd590fe86064648d8150842a469d8822d9bd8104d631ba057933c21a695f97ade301aa8686b0abf8
SSDEEP 384:/+n2650N3qZbATcjRGC5Eo9D46BgnqUhay19mRvR6JZlbw8hqIusZzZVMsc/:Ym+71d5bRpcnueMsK
TLSH
T1D9B22B4E3FA98856C5BC177486B6965043B0A1470413EE2FCCC564DBAFB3AD92D4CAF8
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

Disable or Modify System Firewall

pid	Process
1432	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4a57dfb33a0462ee5413754595ecb42c.exe	Server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4a57dfb33a0462ee5413754595ecb42c.exe	Server.exe

Adds Run key to start application 2 TTPs 2 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\4a57dfb33a0462ee5413754595ecb42c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3865087520-2734723108-1233268525-1000\Software\Microsoft\Windows\CurrentVersion\Run\4a57dfb33a0462ee5413754595ecb42c = "\"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.

Netsh Helper DLL

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.

System Language Discovery

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 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe
Token: 33	796	Server.exe
Token: SeIncBasePriorityPrivilege	796	Server.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 796 wrote to memory of 1432	796	Server.exe	87

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe" ..
1⤵
- System Location Discovery: System Language Discovery
PID:4492