Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
17/10/2026, 17:14
General
- Target 2026-10-16_557066518a41ac2b46164eef22f616fc_cryptolocker_elex.exe
- Size 41KB
- Sample261017-vr61ssas9j
- SHA256 fc798ea569b69fb9667a0d3150a9f23733d19292a973d6b348b1f4193b552d5c
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 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).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- 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\2026-10-16_557066518a41ac2b46164eef22f616fc_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-16_557066518a41ac2b46164eef22f616fc_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
hasfj.exe
memory/2156-0-0x0000000008004000-0x0000000008005000-memory.dmp
memory/2156-1-0x0000000002180000-0x0000000002186000-memory.dmp
memory/2156-2-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2156-3-0x00000000021B0000-0x00000000021B6000-memory.dmp
memory/2704-17-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2704-25-0x0000000008000000-0x000000000800A000-memory.dmp
memory/2704-19-0x0000000002180000-0x0000000002186000-memory.dmp