Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
- submitted
04/05/2024, 15:36
General
- Target 2024-05-04_da6d00bc8addadaecc5345320a03ac34_cryptolocker.exe
- Size 39KB
- Sample240504-s18jwach72
- SHA256 faf4d8ba171d300ae19bd3233cea25558c5e460315f7918a5afcee89aeb99b10
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 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\2024-05-04_da6d00bc8addadaecc5345320a03ac34_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-04_da6d00bc8addadaecc5345320a03ac34_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
hasfj.exe
memory/1800-17-0x0000000003150000-0x0000000003156000-memory.dmp
memory/1800-23-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/1892-0-0x0000000000600000-0x0000000000606000-memory.dmp
memory/1892-1-0x0000000002150000-0x0000000002156000-memory.dmp
memory/1892-8-0x0000000000600000-0x0000000000606000-memory.dmp