Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/07/2026, 21:30
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-09_41f3cbc3db1ecca0bb3da82f36374b1e_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-09_41f3cbc3db1ecca0bb3da82f36374b1e_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-09_41f3cbc3db1ecca0bb3da82f36374b1e_cryptolocker_elex.exe
- Size 41KB
- Sample260709-1ce7esaz61
- SHA256 9b1d41c64264772f3368ec86bc454a623df4e3c7edd4568954cf14a0c0234c36
- MD5 41f3cbc3db1ecca0bb3da82f36374b1e
- SHA1 d2137cc30cc79e7579e1cdd687cf5db99d41369e
- SHA512 d2e2745f141a63efa26f37bae930fe86593a4d6b04a096220f56e81ec79a239b592a665f5345de42a49861513941d37b4a2c4df9bd0346b78233e25468f7de87
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCY:bgGYcA/53GAGgIvFN
- TLSH T13C1375387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4432-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b86d-13.dat CryptoLocker_rule2 behavioral2/memory/2832-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2832-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2832 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 2026-07-09_41f3cbc3db1ecca0bb3da82f36374b1e_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 4432 wrote to memory of 2832 4432 2026-07-09_41f3cbc3db1ecca0bb3da82f36374b1e_cryptolocker_elex.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-09_41f3cbc3db1ecca0bb3da82f36374b1e_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-09_41f3cbc3db1ecca0bb3da82f36374b1e_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4432 -
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:2832
-
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 60f9f7fbab2cd5faf48e4665998ac07dc64a07c07f9ed3c108207f007f3d2c30
- MD5 1bd72d8e2eac34e70f6e74dad60d8c73
- SHA1 49435bbb01ef3290fc35da49f4192c3b9fd2e187
- SHA512 5a4c90b7e3d2fe6f991a4da7ca951a07d9ad6ca4fbb2b834c348f8559e1ca40b0a224f5585a162af7b850b9fe8942606f3f8f0203ca929cc1751acf5850b331f
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCH:bgGYcA/53GAGgIvF2
- TLSH T1391375387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH