Analysis
- max time kernel
120s - max time network
117s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
23/07/2024, 07:56
General
- Target 8905738e6a5895951b8009fdc738ff20N.exe
- Size 90KB
- Sample240723-js6wmsvgrg
- SHA256 ec15f74c51c0f7240d2ba77a0c2ad870036ce11597153eac5ac3caf3445cb975
Malware Config
Extracted
-
njrat
-
0.7d
-
vpn55
-
147.185.221.21:11656
-
dbff472320d89464fd01ee82ecd1dabe
-
reg_key
dbff472320d89464fd01ee82ecd1dabe
-
splitter
|'|'|
Signatures
- njRAT/Bladabindi
Widely used RAT written in .NET.
- Modifies Windows Firewall 2 TTPs 1 IoCs
- 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 1 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).
- 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.
- Suspicious use of AdjustPrivilegeToken 27 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8905738e6a5895951b8009fdc738ff20N.exe"C:\Users\Admin\AppData\Local\Temp\8905738e6a5895951b8009fdc738ff20N.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\steam.exe"C:\Users\Admin\AppData\Roaming\steam.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\steam.exe" "steam.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
-
-
Network
MITRE ATT&CK Enterprise v15
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
1Replay Monitor
Loading Replay Monitor...
Downloads
steam.exe
memory/3084-20-0x00007FF8A2950000-0x00007FF8A32F1000-memory.dmp
memory/3084-19-0x00007FF8A2950000-0x00007FF8A32F1000-memory.dmp
memory/3084-22-0x000000001C560000-0x000000001C5FC000-memory.dmp
memory/3084-23-0x00000000012E0000-0x00000000012E8000-memory.dmp
memory/3084-24-0x00007FF8A2950000-0x00007FF8A32F1000-memory.dmp
memory/3900-2-0x000000001BBA0000-0x000000001BC46000-memory.dmp
memory/3900-3-0x00007FF8A2950000-0x00007FF8A32F1000-memory.dmp
memory/3900-4-0x000000001C1C0000-0x000000001C68E000-memory.dmp
memory/3900-5-0x00007FF8A2950000-0x00007FF8A32F1000-memory.dmp
memory/3900-1-0x0000000001460000-0x000000000146C000-memory.dmp
memory/3900-18-0x00007FF8A2950000-0x00007FF8A32F1000-memory.dmp
memory/3900-0-0x00007FF8A2C05000-0x00007FF8A2C06000-memory.dmp