Analysis
- max time kernel
150s - max time network
153s - platform
windows7_x64 - resource
win7-20220414-en - submitted
11/06/2022, 02:43
General
- Target b3279dbd80cbb71976a4b6be3fd2cbf3.exe
- Size 156KB
- Sample220611-c7khmaedf7
- SHA256 a7944fdf95ed74bba7ccb37fdc4eaef499c4c6f8d9b28044f4c864ad1f04dc94
Score
10/10
Malware Config
Signatures
- suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
- Executes dropped EXE 1 IoCs
- Modifies Windows Firewall 1 TTPs 1 IoCs
- Drops startup file 2 IoCs
- Loads dropped DLL 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). Likely ransomware behaviour.
- Suspicious use of AdjustPrivilegeToken 21 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b3279dbd80cbb71976a4b6be3fd2cbf3.exe"C:\Users\Admin\AppData\Local\Temp\b3279dbd80cbb71976a4b6be3fd2cbf3.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\WindowsServices.exe"C:\Users\Admin\AppData\Roaming\WindowsServices.exe"2⤵
- Executes dropped EXE
- Drops startup file
- 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\WindowsServices.exe" "WindowsServices.exe" ENABLE3⤵
- Modifies Windows Firewall
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
WindowsServices.exe
WindowsServices.exe
WindowsServices.exe
memory/388-54-0x0000000076C81000-0x0000000076C83000-memory.dmp
memory/388-55-0x0000000074F70000-0x000000007551B000-memory.dmp
memory/388-61-0x0000000074F70000-0x000000007551B000-memory.dmp
memory/1920-62-0x0000000074F70000-0x000000007551B000-memory.dmp
memory/1920-65-0x0000000074F70000-0x000000007551B000-memory.dmp