Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
12/05/2024, 04:30
General
- Target explorer.exe
- Size 90KB
- Sample240512-e4xd5agf4t
- SHA256 9851d065bfe156e21c4094445283ea8d1b1aae729f677500427454d936b79095
Malware Config
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.
- 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).
- Suspicious use of AdjustPrivilegeToken 35 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\explorer.exe"C:\Users\Admin\AppData\Local\Temp\explorer.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\explorer.exe"C:\Users\Admin\AppData\Roaming\explorer.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\explorer.exe" "explorer.exe" ENABLE3⤵
- Modifies Windows Firewall
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3768,i,14486271492189381216,15799931579469722648,262144 --variations-seed-version --mojo-platform-channel-handle=4356 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
explorer.exe.log
explorer.exe
memory/3172-0-0x0000000074D82000-0x0000000074D83000-memory.dmp
memory/3172-1-0x0000000074D80000-0x0000000075331000-memory.dmp
memory/3172-2-0x0000000074D80000-0x0000000075331000-memory.dmp
memory/3172-16-0x0000000074D80000-0x0000000075331000-memory.dmp
memory/4280-17-0x0000000074D80000-0x0000000075331000-memory.dmp
memory/4280-18-0x0000000074D80000-0x0000000075331000-memory.dmp
memory/4280-19-0x0000000074D80000-0x0000000075331000-memory.dmp