Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
26/05/2024, 03:53
General
- Target 2024-05-26_bcb9a03387a024e5aa1e08a186c0de02_cryptolocker.exe
- Size 49KB
- Sample240526-efqlnsef87
- SHA256 e7ee271e4e77280813c9db2aa1981f39e7d3b9f4bff62773320e66e831c3f457
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_bcb9a03387a024e5aa1e08a186c0de02_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-26_bcb9a03387a024e5aa1e08a186c0de02_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/3592-0-0x00000000007B0000-0x00000000007B6000-memory.dmp
memory/3592-2-0x00000000007D0000-0x00000000007D6000-memory.dmp
memory/3592-1-0x00000000007B0000-0x00000000007B6000-memory.dmp
memory/4504-20-0x0000000001F80000-0x0000000001F86000-memory.dmp
memory/4504-23-0x0000000001F60000-0x0000000001F66000-memory.dmp