Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
20/02/2024, 01:56
General
- Target 2024-02-20_ddb7e71ba3266c630c84508b4d0ae105_cryptolocker.exe
- Size 70KB
- Sample240220-cc247ahb7s
- SHA256 fb5e10b191033b65c2e7dd34d99f90a15a514b5a5dd13030a75dd06bdd85f73d
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
- Detection of Cryptolocker Samples 4 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\2024-02-20_ddb7e71ba3266c630c84508b4d0ae105_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-20_ddb7e71ba3266c630c84508b4d0ae105_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/976-19-0x0000000000500000-0x000000000050B000-memory.dmp
memory/976-20-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/976-22-0x0000000000560000-0x0000000000566000-memory.dmp
memory/1268-0-0x0000000000500000-0x000000000050B000-memory.dmp
memory/1268-1-0x00000000007F0000-0x00000000007F6000-memory.dmp
memory/1268-2-0x00000000007F0000-0x00000000007F6000-memory.dmp
memory/1268-3-0x0000000000810000-0x0000000000816000-memory.dmp
memory/1268-18-0x0000000000500000-0x000000000050B000-memory.dmp