Analysis
- max time kernel
150s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
02/11/2026, 10:21
General
- Target 2026-11-01_bb5544da7b8ce588f9e7b78ad66afbb6_cryptolocker_elex.exe
- Size 36KB
- Sample261102-md5ltaswct
- SHA256 5d7624d853c945fcae884351e8051319a34b917b58cfcdb9a9514896df084892
Malware Config
Signatures
- Detection 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\2026-11-01_bb5544da7b8ce588f9e7b78ad66afbb6_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-11-01_bb5544da7b8ce588f9e7b78ad66afbb6_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/1132-17-0x0000000008000000-0x000000000800A000-memory.dmp
memory/1132-19-0x0000000003010000-0x0000000003016000-memory.dmp
memory/1132-25-0x0000000008000000-0x000000000800A000-memory.dmp
memory/3400-0-0x0000000008004000-0x0000000008005000-memory.dmp
memory/3400-1-0x0000000000740000-0x0000000000746000-memory.dmp
memory/3400-2-0x0000000008000000-0x000000000800A000-memory.dmp
memory/3400-3-0x0000000002240000-0x0000000002246000-memory.dmp