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
19/08/2026, 11:14
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-19_8d885d65ca2f254c0209c10f8c297b47_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-19_8d885d65ca2f254c0209c10f8c297b47_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-19_8d885d65ca2f254c0209c10f8c297b47_cryptolocker_elex.exe
- Size 63KB
- Sample260819-nca69asflb
- SHA256 1866798ff4b315ce104c27f1f028096ce0a5bdad7e7aff40c88330ff3593974c
- MD5 8d885d65ca2f254c0209c10f8c297b47
- SHA1 6a2fb69e3e92c951fbdafb9c018e3b89104bcd26
- SHA512 60ef5fdea53fe8042c5c42bd34994debf5e3e7fc3693d6c6a2e577c85e9ca083376e816fad58277425ceb2c3b46fa8f1a7697a4a3a0415b058dd54db6cde5ee0
- SSDEEP 768:b7o/2n1TCraU6GD1oVzX0WcO+wMVm+slAMvcWsUavRwz8l7lLF6dIZbCGiwa:bc/y2ikF0+B2qK8PUMbw
- TLSH T1B153123C7FD51A72E377C6B585F691C6FA39B8223D02980D50CB93840833F56ADA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x000700000001b86d-13.dat CryptoLocker_rule2 behavioral2/memory/2324-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2324 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 2026-08-19_8d885d65ca2f254c0209c10f8c297b47_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 4868 wrote to memory of 2324 4868 2026-08-19_8d885d65ca2f254c0209c10f8c297b47_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-19_8d885d65ca2f254c0209c10f8c297b47_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-19_8d885d65ca2f254c0209c10f8c297b47_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4868 -
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:2324
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
- Size 63KB
- SHA256 0bb4b6949424f6fd64e59bb7383192bd61fcec5efb26e7c20083fb06a1c1adf2
- MD5 6fcf957d33fd9e1a559c7333f613c670
- SHA1 64ec2b09ed132ded2518fd57ed6c7812b3c68cc6
- SHA512 a2e18850c1b3fa92bc642b38b020d38b9f122c55c74f70c2d45856ca05e6f41202cda6cc828ebf8d8e4ef59accc7a2a39d651c87a2ece50023a9374e2ff5ef85
- SSDEEP 768:b7o/2n1TCraU6GD1oVzX0WcO+wMVm+slAMvcWsUavRwz8l7lLF6dIZbCGiwd:bc/y2ikF0+B2qK8PUMbj
- TLSH T1C653123C7FD51A72E377C6B585F691C6FA79B8223D02980D50CB93840833F56ADA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH