Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
08/08/2026, 08:55
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-08_4e240751e43a8a615d5dd69b9b03bdc0_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-08_4e240751e43a8a615d5dd69b9b03bdc0_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-08_4e240751e43a8a615d5dd69b9b03bdc0_cryptolocker_elex.exe
- Size 48KB
- Sample260808-kvvf3acm7t
- SHA256 48a6e8f91a888c51937f6a8f51196b199fe66753c5baf85bbcb0a32807d3c7c0
- MD5 4e240751e43a8a615d5dd69b9b03bdc0
- SHA1 2caead81894f5a0b17ec34419227c3197f1c5a25
- SHA512 8d9d389dc1696180e6aa627b16aa84df59e32493c7569894cb9f4880f1d7e004fe27fc46c2e3b8bd0be1fe6a595bbf32e57280c798dfed1223b8941527ec06a4
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqa:bgGYcA/53GAGgIvF7E5
- TLSH T1D82322387BE52932E37BDFB586F691C67975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/6132-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x001f0000000118e7-13.dat CryptoLocker_rule2 behavioral2/memory/2228-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2228-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2228 hasfj.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-08_4e240751e43a8a615d5dd69b9b03bdc0_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 6132 wrote to memory of 2228 6132 2026-08-08_4e240751e43a8a615d5dd69b9b03bdc0_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-08_4e240751e43a8a615d5dd69b9b03bdc0_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-08_4e240751e43a8a615d5dd69b9b03bdc0_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6132 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2228
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 48KB
- SHA256 aa09288215d17f3e52ca07b07266a72b19951e07e7f23acaeb77b4825d7bfe38
- MD5 25812a72ccd495c45c601aaa8ce96f01
- SHA1 99a071f9d3669576fcd169cc1cdce983e097a987
- SHA512 24962cee9fe3d7054dabc090b32f1d16efac2d04872b2818c0d93927c8a4af0fe081ab09b5b14dc69e4c89050120c8a8c0814e5af30da9fc8cd0425341eff809
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqB:bgGYcA/53GAGgIvF7Ea
- TLSH T1C82321387BE52932E37BDFB586F691C67975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH