Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
13/02/2024, 17:32
General
- Target 2024-02-13_2e9100ba189387af76d2b5146ae90387_cryptolocker.exe
- Size 51KB
- Sample240213-v4sc6sfb28
- SHA256 a87004f43bcec323710b5d99816bb315e5fd65feb81ac5db2532881c49a094b7
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\2024-02-13_2e9100ba189387af76d2b5146ae90387_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-13_2e9100ba189387af76d2b5146ae90387_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/468-0-0x00000000006F0000-0x00000000006F6000-memory.dmp
memory/468-1-0x00000000006F0000-0x00000000006F6000-memory.dmp
memory/468-2-0x0000000000710000-0x0000000000716000-memory.dmp
memory/2336-17-0x0000000000740000-0x0000000000746000-memory.dmp
memory/2336-19-0x0000000000720000-0x0000000000726000-memory.dmp