Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
02/06/2024, 23:09
General
- Target 2024-06-02_58f4c7e33ffbef347607ecf1dbe9902c_cryptolocker.exe
- Size 47KB
- Sample240602-25exssbf48
- SHA256 c5eca73b2d41e179057e0ee240edf4d4801449c24c15d05081dd514b0208eb12
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\2024-06-02_58f4c7e33ffbef347607ecf1dbe9902c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_58f4c7e33ffbef347607ecf1dbe9902c_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/1040-0-0x0000000000500000-0x000000000050B000-memory.dmp
memory/1040-1-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/1040-5-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/1040-9-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/1040-17-0x0000000000500000-0x000000000050B000-memory.dmp
memory/1624-18-0x0000000000500000-0x000000000050B000-memory.dmp
memory/1624-21-0x0000000002100000-0x0000000002106000-memory.dmp
memory/1624-20-0x0000000000740000-0x0000000000746000-memory.dmp
memory/1624-27-0x0000000000500000-0x000000000050B000-memory.dmp