Analysis
- user interaction
yes - max time kernel
50s - max time network
49s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
17/10/2026, 10:18
Errors
General
- Target nj.exe
- Size 55KB
- Sample261017-mcdrpsec98
- SHA256 4b85e795e50874596f7a956cace6bb8c379dafcb813faae104371b3aa79c2e21
Malware Config
Signatures
- Family: njRAT/Bladabindi
Widely used RAT written in .NET.
- UAC bypass 3 TTPs 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Creates a file in the Startup directory 1 TTPs 2 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- Enumerates video capture drivers 2 TTPs 1 IoCs
Queries the legacy Video for Windows capture drivers. This is commonly abused by RATs to check for available webcams on the system before reporting to their C2.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry key 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 13 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\nj.exe"C:\Users\Admin\AppData\Local\Temp\nj.exe"1⤵
- Checks computer location settings
- Creates a file in the Startup directory
- Adds Run key to start application
- Enumerates video capture drivers
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd /c reg ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\reg.exereg ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f3⤵
- UAC bypass
- System Location Discovery: System Language Discovery
- Modifies registry key
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C:\Users\Admin\AppData\Local\Temp\b774f3f6cd3349418a4ae88fa2ecc133.exe"C:\Users\Admin\AppData\Local\Temp\b774f3f6cd3349418a4ae88fa2ecc133.exe"2⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\nj.exe"C:\Users\Admin\AppData\Local\Temp\nj.exe" ..1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Pre-OS Boot
1Bootkit
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
3Pre-OS Boot
1Bootkit
1Replay Monitor
Loading Replay Monitor...
Downloads
b774f3f6cd3349418a4ae88fa2ecc133.exe
memory/2920-0-0x00000000017A0000-0x00000000017B0000-memory.dmp
memory/2920-1-0x0000000074DC2000-0x0000000074DC4000-memory.dmp
memory/2920-7-0x00000000017A0000-0x00000000017B0000-memory.dmp
memory/2920-8-0x0000000074DC2000-0x0000000074DC4000-memory.dmp
memory/2920-11-0x0000000074DC0000-0x0000000075371000-memory.dmp
memory/2920-12-0x0000000074DC0000-0x0000000075371000-memory.dmp
memory/2920-13-0x0000000074DC0000-0x0000000075371000-memory.dmp
memory/2920-14-0x0000000074DC0000-0x0000000075371000-memory.dmp
memory/4752-5-0x0000000074DC0000-0x0000000075371000-memory.dmp
memory/4752-6-0x0000000074DC0000-0x0000000075371000-memory.dmp
memory/4752-10-0x0000000074DC0000-0x0000000075371000-memory.dmp