Analysis
- max time kernel
148s - max time network
155s - 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, 14:06
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-02_8905c91bf37530bdda228cbb2c8ab0d9_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-02_8905c91bf37530bdda228cbb2c8ab0d9_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-08-02_8905c91bf37530bdda228cbb2c8ab0d9_cryptolocker_elex.exe
- Size 33KB
- Sample260802-reda6sbb32
- SHA256 04d4d915decd68c02057b79d7851baacf69b86adf06cad33ddddef0e56daf104
- MD5 8905c91bf37530bdda228cbb2c8ab0d9
- SHA1 1686a1c869b20babf8cfffbddc243efc2f588b95
- SHA512 dd67e408a66a77a391ba77ec8a5f48ff7dd5f2d7058afa8756d07226094b84222fb43f4a70416a4bdaa6dc55430ed3de0edca9168c5bd182b582927c69239d3e
- SSDEEP 768:Hf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGeNEmK/4BL:/1KhxqwtdgI2MyzNORQtOflIwoHNV2X+
- TLSH T14CF28572AFD515D1E773AAB3F8F792C1D627BD295922850E108A3F4406F3680EDA1D0B
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000e000000016cdb-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000e000000016cdb-12.dat CryptoLocker_set1 - Executes dropped EXE 1 IoCs
pid Process 2620 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_8905c91bf37530bdda228cbb2c8ab0d9_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 4884 wrote to memory of 2620 4884 2026-08-02_8905c91bf37530bdda228cbb2c8ab0d9_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-02_8905c91bf37530bdda228cbb2c8ab0d9_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-02_8905c91bf37530bdda228cbb2c8ab0d9_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4884 -
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:2620
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hurok.exe
- Size 34KB
- SHA256 7e414c59321bd82be8b06f8c27048c50fd89087fab44e1e226b93c044d5b85ff
- MD5 4955f1c712e837464f2b87ab3c658f67
- SHA1 52ae9dc9439965782c13b176b751739d42b78601
- SHA512 741274fc09d8985da0efe9dae9b6520117366e20492cb87719f4bf52792b9adf86d3896d7cf1e51a48fb1c4851abec9959b9d71795030a9fdd24dc8f6969bd10
- SSDEEP 768:Hf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGeNEmK/4Bf:/1KhxqwtdgI2MyzNORQtOflIwoHNV2X6
- TLSH T1DBF28572AFD505D1E773AAB3F9F792C1D627BD255922850E108A3F040AF3680EDA1D0B
- MD5 SHA1 SHA512 SSDEEP TLSH