Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
18/07/2026, 23:02
General
- Target grim.exe
- Size 157KB
- Sample260718-21bpkshv9s
- SHA256 77f37ffbfc77ab1b13a6c270786e57304ff2694c42fc9129a597e8117f6e5374
Malware Config
Signatures
- Family: njRAT/Bladabindi
Widely used RAT written in .NET.
- Modifies Windows Firewall 2 TTPs 1 IoCs
- Drops startup file 2 IoCs
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of AdjustPrivilegeToken 35 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\grim.exe"C:\Users\Admin\AppData\Local\Temp\grim.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\MicosoftServices.exe"C:\Windows\MicosoftServices.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\MicosoftServices.exe" "MicosoftServices.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
-
-
-
C:\Windows\MicosoftServices.exe"C:\Windows\MicosoftServices.exe" ..1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
MicosoftServices.exe
memory/2220-14-0x00000000746E0000-0x0000000074D01000-memory.dmp
memory/2220-16-0x00000000746E0000-0x0000000074D01000-memory.dmp
memory/3868-0-0x0000000000BC0000-0x0000000000BD0000-memory.dmp
memory/3868-1-0x00000000746E2000-0x00000000746E4000-memory.dmp
memory/4364-11-0x00000000746E0000-0x0000000074D01000-memory.dmp
memory/4364-12-0x00000000746E0000-0x0000000074D01000-memory.dmp
memory/4364-15-0x00000000746E0000-0x0000000074D01000-memory.dmp