Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
26/05/2024, 03:45
General
- Target 2024-05-26_8786edf0c0896b74f0e75e5473b19b3b_cryptolocker.exe
- Size 76KB
- Sample240526-ebjbssee23
- SHA256 1d411fa6af32c39f259cefc20baa9fe2dbb78f5eb7da3a981473ebb3100b434d
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
- Detection of Cryptolocker Samples 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\2024-05-26_8786edf0c0896b74f0e75e5473b19b3b_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-26_8786edf0c0896b74f0e75e5473b19b3b_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
memory/424-17-0x00000000005E0000-0x00000000005E6000-memory.dmp
memory/424-23-0x00000000004E0000-0x00000000004E6000-memory.dmp
memory/4792-0-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/4792-1-0x00000000005D0000-0x00000000005D6000-memory.dmp
memory/4792-8-0x00000000005B0000-0x00000000005B6000-memory.dmp