Analysis
- max time kernel
53s - max time network
60s - platform
windows10-2004_x64 - resource
win10v2004-20240221-en - resource tags
- submitted
24/02/2024, 01:19
General
- Target Loader.exe
- Size 609KB
- Sample240224-bph2eadf74
- SHA256 6c727f906a78ce58fd0970cce1216eaafa833f12ee8f6da2d42839d5ef00fb87
Score
10/10
Malware Config
Signatures
- Detect Umbral payload 1 IoCs
- Umbral
Umbral stealer is an opensource moduler stealer written in C#.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Loader.exe"C:\Users\Admin\AppData\Local\Temp\Loader.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Java(TM) Platform SE binary.exe"C:\Users\Admin\AppData\Local\Temp\Java(TM) Platform SE binary.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Java(TM) Platform SE binary.exe
Java(TM) Platform SE binary.exe
Java(TM) Platform SE binary.exe
memory/680-11-0x0000000000400000-0x00000000004A0000-memory.dmp
memory/2016-12-0x0000000000A20000-0x0000000000A7E000-memory.dmp
memory/2016-13-0x00007FFC77DC0000-0x00007FFC78881000-memory.dmp
memory/2016-15-0x00007FFC77DC0000-0x00007FFC78881000-memory.dmp