Analysis
- max time kernel
148s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
30/05/2024, 04:10
General
- Target 2024-05-30_a128a5c5c65d35d15b87b52fd8fdbc04_cryptolocker.exe
- Size 41KB
- Sample240530-errm4sea51
- SHA256 d2d50383ac5cda3d4a8c2c31a355888957d9c77ec04ebfefa4747106aab4bda9
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\2024-05-30_a128a5c5c65d35d15b87b52fd8fdbc04_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-30_a128a5c5c65d35d15b87b52fd8fdbc04_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
Loading Replay Monitor...
Downloads
asih.exe
memory/2068-17-0x0000000000500000-0x000000000050B000-memory.dmp
memory/2068-20-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/2068-26-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/3548-0-0x0000000000500000-0x000000000050B000-memory.dmp
memory/3548-1-0x0000000000660000-0x0000000000666000-memory.dmp
memory/3548-2-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/3548-9-0x0000000000660000-0x0000000000666000-memory.dmp
memory/3548-19-0x0000000000500000-0x000000000050B000-memory.dmp