Analysis
- max time kernel
148s - 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
08/08/2026, 15:53
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-08_82b142f58f04254064d85f47dbb7f1a9_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-08_82b142f58f04254064d85f47dbb7f1a9_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-08_82b142f58f04254064d85f47dbb7f1a9_cryptolocker_elex.exe
- Size 32KB
- Sample260808-tbzfcazeje
- SHA256 66b4696b08eca33daebfa134400108fb498e407059f34b5bfa9accdcbda834ab
- MD5 82b142f58f04254064d85f47dbb7f1a9
- SHA1 a311c7b6f5764e1fa3a36e0c2d7e0b031fed39a8
- SHA512 9296d05d0c51153566c0a0be4b874006b6ca5652ade55fe398a8184501384aab82d28d61fcfad17ad1f66f9d3cfe70ae24e16d46ca513d8dea8dfaa68216f6ee
- SSDEEP 384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoi0WizBuzAws7N/:b7o/2n1TCraU6GD1a4X0WpON/
- TLSH T117E2A33DBEE859A2D17781B454F3F082FA6B7D4239065C5EA6CBB388093774ABC8051D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x000b000000011377-13.dat CryptoLocker_rule2 behavioral2/memory/2332-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2332 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_82b142f58f04254064d85f47dbb7f1a9_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 6004 wrote to memory of 2332 6004 2026-08-08_82b142f58f04254064d85f47dbb7f1a9_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-08_82b142f58f04254064d85f47dbb7f1a9_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-08_82b142f58f04254064d85f47dbb7f1a9_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6004 -
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:2332
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
- Size 32KB
- SHA256 cb19fe7fa236473214e60ef2163e1319625616f2e8e90ef3ab7b239210ab9430
- MD5 92a25057fb21a76683cc66b46a054b54
- SHA1 72c847b18ad364d42521e969f57b4c6bd0df4151
- SHA512 fb34abe9eb68d0b829cd0010d23f6cbc9f948eaef4012ea558f38a3107c6b847fd09badbc69a264c554faa2fb213f57b48a57652bb582e2837e8e7ba83829cb2
- SSDEEP 384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoi0WizBuzAws7Nm:b7o/2n1TCraU6GD1a4X0WpONm
- TLSH T169E2A33DBEE459A2D17781B454F3F082FA6B7D4239065C5EA6CBB3880937B4ABC8051D
- MD5 SHA1 SHA512 SSDEEP TLSH