Analysis
- max time kernel
150s - max time network
154s - 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, 19:08
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-02_30288029b76d85a948230280453046cd_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-02_30288029b76d85a948230280453046cd_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-02_30288029b76d85a948230280453046cd_cryptolocker_elex.exe
- Size 57KB
- Sample260802-xtfyhazeka
- SHA256 fe79e866c07cf3480eb1ab7fe977490657361e22dae236b86de4b47955beeb62
- MD5 30288029b76d85a948230280453046cd
- SHA1 8dd46ba60e23fa6e943615297fc45434c85923c5
- SHA512 dc10692443b8ec56202fafe010258c9e78168e73b87c4c95a99d099912706968a357c0d7228a56fdf5c94f567db604a37ae3b82645afa327f8b1e2f27af4144d
- SSDEEP 768:b3o/2n1TCraU6GD1gdcKX4WcO+wMVm+slAMphNuhX3HdAxmlkMl1fEPtw32:b4/y2M1oF0+BeghXuMUl
- TLSH T13A43743DBFD51672D37786B585F7A0C6FA3AB82239069C0D50CB53880933F56ADA160D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral2/files/0x000700000001b853-13.dat CryptoLocker_rule2 behavioral2/memory/4712-20-0x0000000000400000-0x000000000040C000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4712-22-0x0000000000400000-0x000000000040C000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4712 rewok.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_30288029b76d85a948230280453046cd_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rewok.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1920 wrote to memory of 4712 1920 2026-08-02_30288029b76d85a948230280453046cd_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-02_30288029b76d85a948230280453046cd_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-02_30288029b76d85a948230280453046cd_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1920 -
C:\Users\Admin\AppData\Local\Temp\rewok.exe"C:\Users\Admin\AppData\Local\Temp\rewok.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4712
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
- Size 58KB
- SHA256 69f1c2c26129924f8dbde99e44a30ea003b4e58badd3478fb5feb9a17ee0e7a4
- MD5 0fdd932f2627fe3042dcfe6769620760
- SHA1 64fbaa48916b80550a1010a8df2da7c6ae9c6bf5
- SHA512 d06aa6a76337252a101e83d69ddda292240f66b76e3f8728b7808ed8a2642a004af5eb48d88ef1780410a48b5363b7e9b59d070684b9e8f3b13051aeeee5c5ba
- SSDEEP 768:b3o/2n1TCraU6GD1gdcKX4WcO+wMVm+slAMphNuhX3HdAxmlkMl1fEPtw3Y:b4/y2M1oF0+BeghXuMU/
- TLSH T1E143743DBFD51672D37786B585F7A0C6FA3AB82239069C0D50CB53880933F56ADA160E
- MD5 SHA1 SHA512 SSDEEP TLSH