Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/08/2026, 14:00
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-02_97025cf801bb8c89094001fbbb757e0a_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-02_97025cf801bb8c89094001fbbb757e0a_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-02_97025cf801bb8c89094001fbbb757e0a_cryptolocker_elex.exe
- Size 41KB
- Sample260802-ra7dfsba63
- SHA256 687808a9e5e74273d4e65c5dda65485f1653a5b529795745444a942eb49a2ea8
- MD5 97025cf801bb8c89094001fbbb757e0a
- SHA1 ee0e48cac6bac7ca86713ffff8131b911d89ea9e
- SHA512 227717c00837d96256ccc69bc81fda206d4eed0302eee61d60d510b9c6a761d2047e5e49706272241e300285def3e5ed869f624bdfaf74a0dc33bc44c3bef98f
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCi:bgGYcA/53GAGgIvF7
- TLSH T1D71374387FE62972E37BDFB586F691C27975B8223D16880D44CA53844833F66DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3000-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b000000011371-13.dat CryptoLocker_rule2 behavioral2/memory/5884-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5884-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5884 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 2026-08-02_97025cf801bb8c89094001fbbb757e0a_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 3000 wrote to memory of 5884 3000 2026-08-02_97025cf801bb8c89094001fbbb757e0a_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-02_97025cf801bb8c89094001fbbb757e0a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-02_97025cf801bb8c89094001fbbb757e0a_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3000 -
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:5884
-
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 58c02f5e74af981780d658fcdd227ac2e388467f2a94919750b9b0909b44703a
- MD5 eec6756ad45b5327abad568a3b88b388
- SHA1 53ed71ae0caab57409bc53358689127c3d3beef3
- SHA512 7336580375d6d21822e2e79da6f868c7e06555dac66baeaeee99eecd099447177c016b1a89188347791300c5e772a4e16435877b098c68d5cd1a9e88a99fe842
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCW:bgGYcA/53GAGgIvFP
- TLSH T19C1374387FE62972E37BDFB586F691C27975B8223D16880D44CA53844833F66DC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH