Analysis
- max time kernel
61s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
30/01/2023, 12:45
General
- Target dc137d47c0de9a27ba75ddc156fad172.exe
- Size 2.3MB
- Sample230130-py7ysaad33
- SHA256 d88b08d7811ea62dcedcbd7f6e881c8a002ec1f30979d5a99d6d7b549fe8d2b4
Score
10/10
Malware Config
Signatures
- NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
- Executes dropped EXE 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 1 IoCs
- Loads dropped DLL 5 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\dc137d47c0de9a27ba75ddc156fad172.exe"C:\Users\Admin\AppData\Local\Temp\dc137d47c0de9a27ba75ddc156fad172.exe"1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\SupWinUpdate_2023\client32.exe"C:\Users\Admin\AppData\Roaming\SupWinUpdate_2023\client32.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
HTCTL32.DLL
HTCTL32.DLL
MSVCR100.dll
NSM.LIC
PCICAPI.dll
PCICHEK.DLL
PCICL32.DLL
PCICL32.dll
client32.exe
client32.exe
client32.ini
msvcr100.dll
pcicapi.dll
pcichek.dll