Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/08/2026, 00:22
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-08_1684d372be709edecd651c1276d692ee_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-08_1684d372be709edecd651c1276d692ee_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-08-08_1684d372be709edecd651c1276d692ee_cryptolocker_elex.exe
- Size 32KB
- Sample260809-an666sfl4v
- SHA256 32e36d1f5068d2a1cb795191245a2b7bdabb0b7ab122ded09d151c6c2d46d753
- MD5 1684d372be709edecd651c1276d692ee
- SHA1 9f2e2c64de47671d345cbfb088f3371fcf51a045
- SHA512 72708e4a700940585d17f554ce26d6b78ddb732a57e42813bf34f1ed25509199045ed57767406ac8f7bd00569359ce790db590a8fc71a66710b9214074ac2f27
- SSDEEP 384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoi0WizBuzAws7Nm:b7o/2n1TCraU6GD1a4X0WpONm
- TLSH T105E2A33DBBE859A2D17781B454F3F082FA6B7D4239065C5EA6CBB388093774ABC8051D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x000700000001b858-13.dat CryptoLocker_rule2 behavioral2/memory/2868-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2868 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 2026-08-08_1684d372be709edecd651c1276d692ee_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 3328 wrote to memory of 2868 3328 2026-08-08_1684d372be709edecd651c1276d692ee_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-08_1684d372be709edecd651c1276d692ee_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-08_1684d372be709edecd651c1276d692ee_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3328 -
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:2868
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
- Size 33KB
- SHA256 6de8c980aad14711670b10f3992e3878267eba00b5fbd6aa0254cec3d6957eac
- MD5 0024f7793aa393dfa4f2a7b2172135ef
- SHA1 69931589f2122b8d79b93c30afc457f20b55cdd4
- SHA512 14aecea874f0d7d206f9c8daf90eaa67f10382b21de1980823d320f57e0190e0c775e33b7df78dbd8896c4421a8bbbf28c60b6c1765b8f436249a3d349970b24
- SSDEEP 384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoi0WizBuzAws7Np:b7o/2n1TCraU6GD1a4X0WpONp
- TLSH T131E2A33DBBE859A2D177817454F3F082FA6B7D4239065C5EA6CBB3880937B4ABC8051D
- MD5 SHA1 SHA512 SSDEEP TLSH