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
17/07/2026, 07:20
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-17_fcf9c9742187f1253b92d06f7d84726c_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-17_fcf9c9742187f1253b92d06f7d84726c_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-17_fcf9c9742187f1253b92d06f7d84726c_cryptolocker_elex.exe
- Size 41KB
- Sample260717-h6dlkshv7x
- SHA256 a657482d740765a1e5dcd8a53cdb125efcaa6392a0f62399dfd1239a50de15d9
- MD5 fcf9c9742187f1253b92d06f7d84726c
- SHA1 44a6026f2e85e7646e920bb8265a8bd3faf3559e
- SHA512 e248d0cf8a1bb32c7a291829a24df382d516f32c4880ec7d8cfc98134a1dd803d4461e2496c7ba86418f81af8b821068950a8dca2ab669a44491503e84488301
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCY:bgGYcA/53GAGgIvF9
- TLSH T1061374387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3124-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000800000001b1d0-13.dat CryptoLocker_rule2 behavioral2/memory/4164-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4164-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4164 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 2026-07-17_fcf9c9742187f1253b92d06f7d84726c_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 3124 wrote to memory of 4164 3124 2026-07-17_fcf9c9742187f1253b92d06f7d84726c_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-17_fcf9c9742187f1253b92d06f7d84726c_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-17_fcf9c9742187f1253b92d06f7d84726c_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3124 -
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:4164
-
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 9c26bfcaa070323bb1dd8513b501e94b1dbfb9de4eb26e6c5ab026d422b5ff92
- MD5 8646f2680c03bb82e9acc11cadba6592
- SHA1 4780d0932155800e399d95836764ed736aa21301
- SHA512 5074440e5c2cc8d5b7ae3f4ab891b27d2dfc342e91edf89159c49621852a2c3bf02a59a9224105fe85e627c6c6aa21273baf595a20089e2be242f92f8ab7692a
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCV:bgGYcA/53GAGgIvF4
- TLSH T14D1374387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH