Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
04/07/2026, 04:23
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-04_59ae5d7118172d209e362ad06bd70435_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-04_59ae5d7118172d209e362ad06bd70435_cryptolocker_elex.exe
Resource
win11ltsc2024-20260629-en
18 signatures
150 seconds
General
- Target 2026-07-04_59ae5d7118172d209e362ad06bd70435_cryptolocker_elex.exe
- Size 40KB
- Sample260704-ezyfmaa121
- SHA256 148a6165a82bd5f39427c2644a0561b167eb406c60bdfc3075ba0aa3df554d6e
- MD5 59ae5d7118172d209e362ad06bd70435
- SHA1 1f4bee965abc101fd7e66ea8f6f8fdb0e4ace4fc
- SHA512 696b3d0b8963edc3e84a07c7a46dd154b16bfccf7168abbaa43b6909a4648d32023acb0d86210904c3d11235f87db9f975639d2d4d6b9cfe7fc823d501050446
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCb:bgGYcA/53GAGgIvFi
- TLSH T1201386387FD62972D37BDFB586F691C6B975B8223D16880D44CA53844833F62EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2684-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x00080000000243de-13.dat CryptoLocker_rule2 behavioral1/memory/416-17-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/416-25-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1074038928-2032447174-945360078-1000\Control Panel\International\Geo\Nation 2026-07-04_59ae5d7118172d209e362ad06bd70435_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 416 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 2026-07-04_59ae5d7118172d209e362ad06bd70435_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 2684 wrote to memory of 416 2684 2026-07-04_59ae5d7118172d209e362ad06bd70435_cryptolocker_elex.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-04_59ae5d7118172d209e362ad06bd70435_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-04_59ae5d7118172d209e362ad06bd70435_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684 -
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:416
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 41KB
- SHA256 1662e9358a543d6b156d12bfed0cc3748f9f0f330e27cced27aae43bf20ab451
- MD5 43e4318325d1b2c30adfe9340da1f6eb
- SHA1 bf9401cf504f75c2d65ea2cfbc04ebe6a4ced780
- SHA512 d2bd4f4f63fe8b856c73623512a144fc5d47a3062933230a4d5fcfa2f663d420d9f765a77310d07f4ee10d083f3834870a0b26c62204e3da7959cc054aa92cfa
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCX:bgGYcA/53GAGgIvFu
- TLSH T1C01375387FD62972E37BDFB586F691C6B975B8223D16880D44CA53844833F62EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH