Analysis
- max time kernel
148s - max time network
128s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
07/08/2026, 01:53
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-07_3c7a31793d946835c914ded6bcdf6b68_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-07_3c7a31793d946835c914ded6bcdf6b68_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
6 signatures
150 seconds
General
- Target 2026-08-07_3c7a31793d946835c914ded6bcdf6b68_cryptolocker_elex.exe
- Size 35KB
- Sample260807-cbacsael8x
- SHA256 1d5a60f633764553db79474b67434ed357978fcac088aeab8d2263c33f72fca0
- MD5 3c7a31793d946835c914ded6bcdf6b68
- SHA1 0b1f4076932159be34bc08591394433ccd3e9dd2
- SHA512 0d74c05dd9918e98a5367ce01493b995e46e5a23ba9f8739283b253a8110d55f060d0de609678e60932c1a3bcb987a51b7cd9063dab67f5ca7ac094029205ee2
- SSDEEP 768:df1K2exzikBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGS/YIm7wm+X:B1KhxTwtdgI2MyzNORQtOflIwoHNV2XI
- TLSH T105F25436AED515E6D673AA73F4F792C2E927BD653922450E108A3F0049F3781BCA1D0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x001200000001b664-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x001200000001b664-12.dat CryptoLocker_set1 - Executes dropped EXE 1 IoCs
pid Process 960 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 2026-08-07_3c7a31793d946835c914ded6bcdf6b68_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 5192 wrote to memory of 960 5192 2026-08-07_3c7a31793d946835c914ded6bcdf6b68_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-07_3c7a31793d946835c914ded6bcdf6b68_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-07_3c7a31793d946835c914ded6bcdf6b68_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5192 -
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:960
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hurok.exe
- Size 35KB
- SHA256 17013b40bfb4633cfb35f681ce59c62fe91115770b116aabfe91a52e5e450c7e
- MD5 8d7dcac9fd8eb91e06882dd162e1465e
- SHA1 82ad3016b0a4f14b9f8dbad3dfd2e262487204d4
- SHA512 3ab37ef20431b303a0476f2d2622f2c303e8cb1fb34e761b682996eddb5171d4e092d6ccaefca2ac66351dfe5dac661c22693b0affbfd9f5bae3df6750d68d01
- SSDEEP 768:df1K2exzikBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGS/YIm7wm+9:B1KhxTwtdgI2MyzNORQtOflIwoHNV2XW
- TLSH T161F25436AED515E6D673AA73F4F791C2E927BD653922450E108A3F0009F3781ADA1D0E
- MD5 SHA1 SHA512 SSDEEP TLSH