Analysis
- max time kernel
150s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
13/06/2024, 01:47
General
- Target 2024-06-13_899d2134a890c593a6990c5476c170ec_cryptolocker.exe
- Size 73KB
- Sample240613-b7nplszdpg
- SHA256 34ed2f132f42407a72974e8f214eb44d60d98f8a83f751b3195db096642cb8d5
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
- Detection of Cryptolocker Samples 3 IoCs
- UPX dump on OEP (original entry point) 5 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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\2024-06-13_899d2134a890c593a6990c5476c170ec_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_899d2134a890c593a6990c5476c170ec_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/348-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/348-20-0x0000000000590000-0x0000000000596000-memory.dmp
memory/348-26-0x0000000000560000-0x0000000000566000-memory.dmp
memory/348-27-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4932-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4932-1-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/4932-3-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/4932-9-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/4932-18-0x0000000000500000-0x0000000000510000-memory.dmp