Analysis
- max time kernel
150s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
26/03/2024, 23:47
General
- Target 2024-03-26_b3b374d924d026ef0aa83e2a9859556c_cryptolocker.exe
- Size 33KB
- Sample240326-3swv8aaa5v
- SHA256 86571e3a12f4369c32db5c276d245d10533f0d27a3125d5f20fac5de6bdb7db7
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\2024-03-26_b3b374d924d026ef0aa83e2a9859556c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-26_b3b374d924d026ef0aa83e2a9859556c_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
hasfj.exe
memory/1116-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/1116-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/1116-2-0x0000000003150000-0x0000000003156000-memory.dmp
memory/2960-17-0x00000000021D0000-0x00000000021D6000-memory.dmp
memory/2960-21-0x0000000002110000-0x0000000002116000-memory.dmp