Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
23/04/2024, 08:27
General
- Target 2024-04-23_ca09192de57dfa17883fe97467921664_cryptolocker.exe
- Size 39KB
- Sample240423-kceynaeh43
- SHA256 81c0f10bd7cb9218872a5ddc15bb23282d4bf610018f76cf0b929340a578a666
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\2024-04-23_ca09192de57dfa17883fe97467921664_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-23_ca09192de57dfa17883fe97467921664_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
Loading Replay Monitor...
Downloads
lossy.exe
memory/3656-17-0x0000000001FF0000-0x0000000001FF6000-memory.dmp
memory/3656-19-0x0000000001FC0000-0x0000000001FC6000-memory.dmp
memory/4180-0-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/4180-1-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/4180-2-0x00000000004F0000-0x00000000004F6000-memory.dmp