Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20230621-en - resource tags
- submitted
29/06/2023, 01:45
General
- Target file.exe
- Size 1.8MB
- Sample230629-b6d4sabf74
- SHA256 1ac36deadf79f1d911a8cd2232d5d86f39870c8041c52196f87f6390f132fa85
Score
10/10
Malware Config
Signatures
- DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
- UAC bypass 3 TTPs 3 IoCs
- DCRat payload 1 IoCs
Detects payload of DCRat, commonly dropped by NSIS installers.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks whether UAC is enabled 1 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 13 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- System policy modification 1 TTPs 3 IoCs
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- System policy modification
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/752-133-0x0000000000DE0000-0x0000000000FB2000-memory.dmp
memory/752-134-0x000000001BCB0000-0x000000001BCC0000-memory.dmp
memory/752-135-0x000000001BC20000-0x000000001BC70000-memory.dmp
memory/752-136-0x000000001C810000-0x000000001CD38000-memory.dmp
memory/752-137-0x000000001BCB0000-0x000000001BCC0000-memory.dmp
memory/752-185-0x000000001C7B0000-0x000000001C7FB000-memory.dmp