Analysis
- max time kernel
148s - max time network
149s - 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, 03:51
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-01_e5ffe00e7ddca70e24f17beb0c0bb5a0_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-01_e5ffe00e7ddca70e24f17beb0c0bb5a0_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-01_e5ffe00e7ddca70e24f17beb0c0bb5a0_cryptolocker_elex.exe
- Size 62KB
- Sample260802-eetlyacq6t
- SHA256 07799e81c3001bb48b7f83197cb185ea52d82e74da89c1172f31032300ffb606
- MD5 e5ffe00e7ddca70e24f17beb0c0bb5a0
- SHA1 70b1060a284e2399bd36f3359bb4c781976da381
- SHA512 3f8c51786e145bf4f81d90c26eb1a0cda5f762a6aac5c63306b4ba0cd7a7d10199658da513165eccf3b43d94b74ceec8c0999a3da09868627c81d30ac0fec2a8
- SSDEEP 768:b7o/2n1TCraU6GD1oVzX0WcO+wMVm+slAMvcWsUavRwz8l7lLF6dIZbCGOr:bc/y2ikF0+B2qK8PUMbKr
- TLSH T12653123C7FD51A72E377C6B585F691C6FA79B82239029C0D50CB93840833F5AADA1A1D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x0006000000016b3a-13.dat CryptoLocker_rule2 behavioral2/memory/5104-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5104 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 2026-08-01_e5ffe00e7ddca70e24f17beb0c0bb5a0_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 764 wrote to memory of 5104 764 2026-08-01_e5ffe00e7ddca70e24f17beb0c0bb5a0_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-01_e5ffe00e7ddca70e24f17beb0c0bb5a0_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-01_e5ffe00e7ddca70e24f17beb0c0bb5a0_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:764 -
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:5104
-
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 ec4174af4926ca2bced175bc2d195b04ab97619e5def406dbcd54871f00891a3
- MD5 c404e40146ef56d0440663099fd31852
- SHA1 805936154c483868188a9ac7acf6af657ccb5641
- SHA512 ed737bc2601c562fceef615d663f6bd39ab71e254e157fe3e0b2df533a7dbd93734b19a9f05782c9986bb818f0222c33714684dac693b035bc3960426f36b035
- SSDEEP 768:b7o/2n1TCraU6GD1oVzX0WcO+wMVm+slAMvcWsUavRwz8l7lLF6dIZbCGO5:bc/y2ikF0+B2qK8PUMbK5
- TLSH T10553123C7FD51A72E377C6B585F691C6FA79B82239029C0D50CB93840833F5AADA1A1D
- MD5 SHA1 SHA512 SSDEEP TLSH