Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/08/2026, 00:17
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-04_cafbd56a088b9c091634e230abf7ed2f_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-04_cafbd56a088b9c091634e230abf7ed2f_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-04_cafbd56a088b9c091634e230abf7ed2f_cryptolocker_elex.exe
- Size 41KB
- Sample260805-alaeesgl6z
- SHA256 f41a8584f7da65545f13113ba4d9b8a44ee2f664f380b7cfe4eff1db47a3411c
- MD5 cafbd56a088b9c091634e230abf7ed2f
- SHA1 01a430389b140e13c0c2800bfa9ed888e19a1d2e
- SHA512 0fcc48736fee8b8d7c71d80f7f28f8263e311bc0977b0c18ff22e0125d581948fb83c64e39a4d1b3ef577f4d668de8ebcc597ab2c2611b6d28b3c82e1d74ed08
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCj:bgGYcA/53GAGgIvFa
- TLSH T14A1374387FE62972E37BDFB586F691C27975B8223D16880D44CA53844833F66EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/616-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b85f-13.dat CryptoLocker_rule2 behavioral2/memory/5640-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5640-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5640 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 2026-08-04_cafbd56a088b9c091634e230abf7ed2f_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 616 wrote to memory of 5640 616 2026-08-04_cafbd56a088b9c091634e230abf7ed2f_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-04_cafbd56a088b9c091634e230abf7ed2f_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-04_cafbd56a088b9c091634e230abf7ed2f_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:616 -
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:5640
-
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 7b404f1c59412d6d6c792295eb353c400a4e3ae42df09c67863f85d3737cf946
- MD5 a8ba5a32a34b7dfae055c7ad81d268d4
- SHA1 840f3cb9f1a7234d32e140e8b28062b2223cf554
- SHA512 059802f33795f69ce57dad2047fbf01d549ad641af2ca466b1a3083dad9ce5f70a7218bed6d1da6fa929196a44b57ea8a97de1651091b299778a7c4c1ddd215b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCd:bgGYcA/53GAGgIvFY
- TLSH T1621374387FE62972E37BDFB586F691C27975B8223D16880D44CA53844833F66EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH