Analysis
- max time kernel
148s - max time network
152s - 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, 10:32
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-02_e6319551e6732f5c78ac78fe2664fed5_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-02_e6319551e6732f5c78ac78fe2664fed5_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-02_e6319551e6732f5c78ac78fe2664fed5_cryptolocker_elex.exe
- Size 51KB
- Sample260802-mlafms1bje
- SHA256 7bab0a59013a28ff2cbf5065e812ae0c473086f09f64d096ce8872e20c9d310e
- MD5 e6319551e6732f5c78ac78fe2664fed5
- SHA1 a853209e735b243eb3eb92b2c76f43fa49a11163
- SHA512 5f15dcf2235503edc9d46533d3726257b420163410dc821767a624da7c030fe6c44bdabdcb1da819a970c1c9126df44bab9f30c8dff98d1110e85042db61555e
- SSDEEP 768:qao/2n1TCraU6GD1a4Xcn62y7Q/bqK7gmM:qF/y2lm6o2K8
- TLSH T15F33DC386EE95972D37BCAB585F2A1C6B93578123D029C0E51CB63840C33F57BDA1A1E
- 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/2712-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2712 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_e6319551e6732f5c78ac78fe2664fed5_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 5892 wrote to memory of 2712 5892 2026-08-02_e6319551e6732f5c78ac78fe2664fed5_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-02_e6319551e6732f5c78ac78fe2664fed5_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-02_e6319551e6732f5c78ac78fe2664fed5_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5892 -
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:2712
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
- Size 51KB
- SHA256 2e01c97018aa10a10fcc38f65612bbd2b2b83ba6f1d65310369e154fcc103c6a
- MD5 24c433af15f9d925f964402c95fa3025
- SHA1 7bbb92a48c5aadef4eeb77215f8d2ca216868acc
- SHA512 52dc4db2f30ed6da2e8f8864e39b2890899f372646dbc0c677ea2edb728210086cf1bd92142b767b43dca8ba182770d4cfbde7589120ecf538b468a531d147a8
- SSDEEP 768:qao/2n1TCraU6GD1a4Xcn62y7Q/bqK7gmd:qF/y2lm6o2Kt
- TLSH T19C33DC386EE95972D37BCAB585F2A1C6B93578123D029C0E51CB63840C33F57BDA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH