Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
11/06/2024, 01:35
General
- Target 2024-06-11_9887cd3b32bf0b015e244facd9bbe048_cryptolocker.exe
- Size 49KB
- Sample240611-bzmscazcpr
- SHA256 dd8924a11d2317f16c5b79b4b9f1c6c3e65a45ff3665cd155e2f16b716aeaf3c
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 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\2024-06-11_9887cd3b32bf0b015e244facd9bbe048_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-11_9887cd3b32bf0b015e244facd9bbe048_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
lossy.exe
memory/552-0-0x00000000021B0000-0x00000000021B6000-memory.dmp
memory/552-1-0x0000000002030000-0x0000000002036000-memory.dmp
memory/552-8-0x00000000021B0000-0x00000000021B6000-memory.dmp
memory/3780-17-0x0000000002070000-0x0000000002076000-memory.dmp
memory/3780-23-0x00000000021D0000-0x00000000021D6000-memory.dmp