Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/08/2026, 03:45
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_7be8b38f179dbfef4a90bf98383f6c7c_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_7be8b38f179dbfef4a90bf98383f6c7c_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-08-20_7be8b38f179dbfef4a90bf98383f6c7c_cryptolocker_elex.exe
- Size 51KB
- Sample260820-ebjmkasscw
- SHA256 3241362e2f5784714f37727a02923d2fd87a7787fcb90f4dfa06a208ce9488bd
- MD5 7be8b38f179dbfef4a90bf98383f6c7c
- SHA1 c704df0ec4ca0bf3d93543795f2a5fe86b95c6da
- SHA512 9cdaafae2c13bd76d601b743de37aa73468d7f67b5ceb27747058605c2fae03482dc364d3d6d3150c261eeeff38e3a0274fa75332f1cfe04882d6ac76bc27a1f
- SSDEEP 768:qao/2n1TCraU6GD1a4Xcn62y7Q/bqK76sRE:qF/y2lm6o2KOJ
- TLSH T19B33ED386EE55972D3BBCAB585F2A1C6B93578123D069C0E50CB63840C33F57BDA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral2/files/0x000700000001b850-13.dat CryptoLocker_rule2 behavioral2/memory/2756-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2756-22-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2756 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 2026-08-20_7be8b38f179dbfef4a90bf98383f6c7c_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 5940 wrote to memory of 2756 5940 2026-08-20_7be8b38f179dbfef4a90bf98383f6c7c_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_7be8b38f179dbfef4a90bf98383f6c7c_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_7be8b38f179dbfef4a90bf98383f6c7c_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5940 -
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:2756
-
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 9784e8afa4cc6eff5dd0a035287cc9783bc848ed6417cd2fc804daf70b8bd698
- MD5 0dd9d49c549dba52b4c98a9762904da9
- SHA1 bcf17073da8eb932a3c950ad0d95691f56a0aaad
- SHA512 694bbc7a16854cf3ab65f42b7cb59039d5c60edc76dbe25255f153a8410f02f35c72f4571a329cb148d020ce67f74f85993ad07819838392b57433a80ef7dc54
- SSDEEP 768:qao/2n1TCraU6GD1a4Xcn62y7Q/bqK76sRJ:qF/y2lm6o2KOM
- TLSH T10033ED386EE55972D3BBCAB585F2A1C6B93578123D069C0E50CB53840C33F57BDA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH