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, 08:34
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-02_696f5a192c09163a3866b2719b6857ec_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-02_696f5a192c09163a3866b2719b6857ec_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-08-02_696f5a192c09163a3866b2719b6857ec_cryptolocker_elex.exe
- Size 33KB
- Sample260802-kggytayerc
- SHA256 20edffe331cdb58896cc6db95f52c88a1662df3f1284e262635a2367001dd83a
- MD5 696f5a192c09163a3866b2719b6857ec
- SHA1 438a2ca79049726910ceea8498acf1188648784d
- SHA512 efe8c01ce1eb662a48a082e6e2e1229c967fb8252d22ea05720652c0a99dc33210259af814bfde70b5b237cb4367027e58b4c34a77e090b401bdfc9104c12540
- SSDEEP 768:Hf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGeNEmK/4Bg:/1KhxqwtdgI2MyzNORQtOflIwoHNV2XZ
- TLSH T14BF28572AFD515D1E773AAB3F8F792C1D627BD295922850E108A3F4406F3680EDA1D0B
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000c00000001b87d-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000c00000001b87d-12.dat CryptoLocker_set1 - Executes dropped EXE 1 IoCs
pid Process 4896 hurok.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_696f5a192c09163a3866b2719b6857ec_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hurok.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2956 wrote to memory of 4896 2956 2026-08-02_696f5a192c09163a3866b2719b6857ec_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-02_696f5a192c09163a3866b2719b6857ec_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-02_696f5a192c09163a3866b2719b6857ec_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2956 -
C:\Users\Admin\AppData\Local\Temp\hurok.exe"C:\Users\Admin\AppData\Local\Temp\hurok.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4896
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hurok.exe
- Size 33KB
- SHA256 6f5f628d0685f6d98c8305461d13d26afa2ba176006b25ebd73e9337f7e279c0
- MD5 ee781ffee29620a10bd0f649fd3f527b
- SHA1 93ce5324e96fbbd925022bfdfb868b2df1294d97
- SHA512 e3fa7d6c02cd1825fa5ec795e713ca0ff19e4370f94b1ef73587e7a60b19ad96659d399a337128496dabc99b08a5b3803d1679280b99e3a9432862ffb7393b85
- SSDEEP 768:Hf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGeNEmK/4BI:/1KhxqwtdgI2MyzNORQtOflIwoHNV2Xp
- TLSH T15BF28572AFD515D1E773AAB3F9F792C1D627BD255922850E108A3F040AF3680EDA1D0B
- MD5 SHA1 SHA512 SSDEEP TLSH