Analysis
- max time kernel
148s - max time network
122s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
01/07/2026, 11:44
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-01_90a41ca5992b5d37464f5fc2a60380d8_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-01_90a41ca5992b5d37464f5fc2a60380d8_cryptolocker_elex.exe
Resource
win11ltsc2024-20260629-en
5 signatures
150 seconds
General
- Target 2026-07-01_90a41ca5992b5d37464f5fc2a60380d8_cryptolocker_elex.exe
- Size 41KB
- Sample260701-nwad3aez71
- SHA256 1a41e3932520be2d94b6c51e7241a0c2bbd29fe8ebbf5c7258efd5c8d44c22db
- MD5 90a41ca5992b5d37464f5fc2a60380d8
- SHA1 349016d8e2b0fc977e0fe217a9434ae0ab289150
- SHA512 4da6aea02dc32c75fdff8f4315f142955d1365617a098db7f1e21c6490ce714facdc9c866bde7edfb19ce9d1b8d1df88f4c2689ec4c225f3812a3115989142c5
- SSDEEP 768:btB9g/WItCSsA5dAXwr3BGub4PnPXHSZD:btB9g/xtCSqOxGFPXHSZD
- TLSH T15C1364347FE55A72D377CAB645F3E1C2A976BC227916D91D91CEA3480833B02EC90A1D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x00170000000115bf-13.dat CryptoLocker_rule2 behavioral2/memory/5888-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5888 gewos.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 2026-07-01_90a41ca5992b5d37464f5fc2a60380d8_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language gewos.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5696 wrote to memory of 5888 5696 2026-07-01_90a41ca5992b5d37464f5fc2a60380d8_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-01_90a41ca5992b5d37464f5fc2a60380d8_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-01_90a41ca5992b5d37464f5fc2a60380d8_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5696 -
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5888
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\gewos.exe
- Size 42KB
- SHA256 89da308d12ed69a69a8b5e00b7cac70006a28417b6ace0ed887bbe8f18f7bcc1
- MD5 aec8ad57e33d2c2c40eaf253071929f5
- SHA1 a6699ce3cdc7cb1404373340b33ced75789d1222
- SHA512 24e0cfd01d1bac37c36cfb71fe08f53ce9af1e48b8306f3a87124a149f571a6cfbd306c59256f5e4886e069c535fb16b669a9dc8f201d67664a0dfa7c7debd82
- SSDEEP 768:btB9g/WItCSsA5dAXwr3BGub4PnPXHSZ2:btB9g/xtCSqOxGFPXHSZ2
- TLSH T1301363347FE55A72D377CAB645F3E1C2A976BC227916D91D91CEA3480833B02EC90A1D
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\gewosik.exe
- Size 184B
- SHA256 fbab8cb25ae2b74e67360338d2166265ddd38e60ccb369ac086746e28efe81d7
- MD5 666bb1d4218d2b9f813779e8333ef430
- SHA1 79c70342aeca1d4e3386264e0147a8b1ba3972f3
- SHA512 52bb91530e02f1947bec9b299287978926bce2a3a9ce98e9f82cd515949c2f51b9a8608976acf4fdd7dfc7eafab5167e4f427327243774d9ca1c400968d0a8a4
- TLSH T117C022F28820885B441136168C81621291227944EE800C2090852A9886A0B330D11510
- MD5 SHA1 SHA512 TLSH