Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
07/11/2024, 15:08
General
- Target 2024-11-07_f15cf2306760758167e2eed8c6116665_cryptolocker.exe
- Size 68KB
- Sample241107-shw35atnet
- SHA256 406165c387b84a954694e994f2526d4303a6b616aca410dd6677509aad604a83
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- UPX packed file 4 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-11-07_f15cf2306760758167e2eed8c6116665_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-07_f15cf2306760758167e2eed8c6116665_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
memory/2656-19-0x00000000006C0000-0x00000000006C6000-memory.dmp
memory/2656-25-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/2656-26-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4924-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4924-1-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/4924-2-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/4924-3-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/4924-17-0x0000000000500000-0x0000000000510000-memory.dmp