Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20250217-en - resource tags
- submitted
24/02/2025, 21:30
General
- Target 40521c1f50c46ac01e69859ed6307205.exe
- Size 168KB
- Sample250224-1csshsxns5
- SHA256 2ca58ea7ab03242dd393bbdd3392b150afd69e349b3199c77cb87185a60e32eb
Malware Config
Signatures
- Njrat family
- njRAT/Bladabindi
Widely used RAT written in .NET.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 2 IoCs
- Executes dropped EXE 4 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: GetForegroundWindowSpam 2 IoCs
- Suspicious use of AdjustPrivilegeToken 31 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\40521c1f50c46ac01e69859ed6307205.exe"C:\Users\Admin\AppData\Local\Temp\40521c1f50c46ac01e69859ed6307205.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Dllhost.exe"C:\Users\Admin\AppData\Local\Temp\Dllhost.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
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C:\Users\Admin\AppData\Local\Temp\Server.exeC:\Users\Admin\AppData\Local\Temp/Server.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
C:\Users\Admin\AppData\Local\Temp\Server.exeC:\Users\Admin\AppData\Local\Temp/Server.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
C:\Users\Admin\AppData\Local\Temp\Server.exeC:\Users\Admin\AppData\Local\Temp/Server.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
Server.exe.log
Dllhost.exe
memory/540-16-0x0000000074D80000-0x0000000075530000-memory.dmp
memory/540-4-0x0000000074D80000-0x0000000075530000-memory.dmp
memory/540-5-0x0000000005BE0000-0x0000000005C72000-memory.dmp
memory/540-2-0x0000000005770000-0x000000000580C000-memory.dmp
memory/540-3-0x00000000060F0000-0x0000000006694000-memory.dmp
memory/540-0-0x0000000074D8E000-0x0000000074D8F000-memory.dmp
memory/540-1-0x0000000000F20000-0x0000000000F30000-memory.dmp
memory/3024-24-0x0000000074D80000-0x0000000075530000-memory.dmp
memory/3024-28-0x0000000074D80000-0x0000000075530000-memory.dmp
memory/3024-25-0x0000000074D80000-0x0000000075530000-memory.dmp
memory/4284-15-0x0000000074D80000-0x0000000075530000-memory.dmp
memory/4284-21-0x0000000074D80000-0x0000000075530000-memory.dmp
memory/4284-27-0x0000000005AB0000-0x0000000005ABA000-memory.dmp
memory/4284-20-0x0000000074D80000-0x0000000075530000-memory.dmp
memory/4284-29-0x0000000005B70000-0x0000000005BD6000-memory.dmp
memory/4284-30-0x0000000006A80000-0x0000000006A98000-memory.dmp
memory/4284-17-0x0000000074D80000-0x0000000075530000-memory.dmp