Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
21/04/2024, 04:37
General
- Target 2024-04-21_e26bc1dfc241a9e07246c097bd4b0d01_cryptolocker.exe
- Size 50KB
- Sample240421-e89v1sbf7s
- SHA256 f8d616a273ee19f61e2f8fbd29d9ecfebdc7f3d48ef17d01d74eb79f6555dd44
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
- Detection of Cryptolocker Samples 4 IoCs
- Detects executables built or packed with MPress PE compressor 4 IoCs
- 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 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-04-21_e26bc1dfc241a9e07246c097bd4b0d01_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-21_e26bc1dfc241a9e07246c097bd4b0d01_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
misid.exe
memory/3016-19-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/3016-21-0x00000000021D0000-0x00000000021D6000-memory.dmp
memory/3016-26-0x0000000000500000-0x000000000050F000-memory.dmp
memory/4276-0-0x0000000000500000-0x000000000050F000-memory.dmp
memory/4276-1-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/4276-2-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/4276-3-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/4276-17-0x0000000000500000-0x000000000050F000-memory.dmp