Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
20/08/2026, 18:55
General
- Target 2026-08-20_a16402275b989b2f3042d295cc498f3b_coinminer_cryptolocker_elex.exe
- Size 48KB
- Sample260820-xk3e5stemc
- SHA256 0f90d208a768a6b68d2145ef961f8e942a7568809ce11f0770bf59df638a3372
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
- UPX dump on OEP (original entry point) 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
- UPX packed file 5 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 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_a16402275b989b2f3042d295cc498f3b_coinminer_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_a16402275b989b2f3042d295cc498f3b_coinminer_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
lossy.exe
memory/1644-18-0x0000000008000000-0x000000000800F000-memory.dmp
memory/1644-20-0x00000000020E0000-0x00000000020E6000-memory.dmp
memory/1644-26-0x0000000008000000-0x000000000800F000-memory.dmp
memory/4256-0-0x0000000008000000-0x000000000800F000-memory.dmp
memory/4256-1-0x0000000008004000-0x0000000008005000-memory.dmp
memory/4256-2-0x00000000020B0000-0x00000000020B6000-memory.dmp
memory/4256-3-0x0000000008000000-0x000000000800F000-memory.dmp
memory/4256-4-0x00000000020D0000-0x00000000020D6000-memory.dmp