Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
13/06/2024, 04:29
General
- Target 2024-06-13_87af9452ecda7c80fd1ac01c7b7c2004_cryptolocker.exe
- Size 45KB
- Sample240613-e4pz2sthmb
- SHA256 e457ee780a48ff7b2c7d4ff544e4b8a02a64693c883cb7a9fe5d7ad45c294b3d
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
- Detection of Cryptolocker Samples 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
- 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_87af9452ecda7c80fd1ac01c7b7c2004_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_87af9452ecda7c80fd1ac01c7b7c2004_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/4316-0-0x0000000000500000-0x000000000050B000-memory.dmp
memory/4316-1-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/4316-2-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/4316-9-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/4316-18-0x0000000000500000-0x000000000050B000-memory.dmp
memory/4440-17-0x0000000000500000-0x000000000050B000-memory.dmp
memory/4440-20-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/4440-26-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/4440-27-0x0000000000500000-0x000000000050B000-memory.dmp