Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/08/2026, 01:05
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-20_add92a9e0d5cd6f8ec4a7e9db3afc4b9_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_add92a9e0d5cd6f8ec4a7e9db3afc4b9_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-08-20_add92a9e0d5cd6f8ec4a7e9db3afc4b9_cryptolocker_elex.exe
- Size 34KB
- Sample260820-bft3bacp5w
- SHA256 1991b7c7474924b228c3503d1f9acb1c7a139c78364b03b2bb1d294145fc5ed7
- MD5 add92a9e0d5cd6f8ec4a7e9db3afc4b9
- SHA1 52c52e8adbe2e4c39c2a81e444846fbd441fcf88
- SHA512 518f680f2bb985236cb26b94bba9bef9356b649bbeb490c3aae70cd0f107f374ef40c3c9370716433676fcf408a09c6d1292415b816b2ead59deee7fa60154d7
- SSDEEP 768:Hf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGeNEmK/4BX+:/1KhxqwtdgI2MyzNORQtOflIwoHNV2Xj
- TLSH T195F27472AFD515D1E773AAB3F8F792C19627BD255D22850E108A3F440AF3680EDA1D0B
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x00160000000115f5-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x00160000000115f5-12.dat CryptoLocker_set1 - Executes dropped EXE 1 IoCs
pid Process 4840 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 2026-08-20_add92a9e0d5cd6f8ec4a7e9db3afc4b9_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 992 wrote to memory of 4840 992 2026-08-20_add92a9e0d5cd6f8ec4a7e9db3afc4b9_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_add92a9e0d5cd6f8ec4a7e9db3afc4b9_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_add92a9e0d5cd6f8ec4a7e9db3afc4b9_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:992 -
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:4840
-
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 41007d8c8bf0c419ad34fdf65ff9980d573ab058c9dcda4af49f0f7caed9012e
- MD5 f6d8afc6f83d55bf1afdb7983fca94d1
- SHA1 bc776082fc721868db897e9132b71bf86ebaac97
- SHA512 ac8f6d202a080eb70f231fa3da3c4ab2e78c1176d6cb34246874f3b5fa3b050315674b8470997ca42f7cdbac20330a748cfde298061d61c4773568b1c4793b5d
- SSDEEP 768:Hf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGeNEmK/4BXV:/1KhxqwtdgI2MyzNORQtOflIwoHNV2XM
- TLSH T18AF28572AFD515D1E773AAB3F8F792C19627BD255D22850E108A3F440AF3680EDA1D0B
- MD5 SHA1 SHA512 SSDEEP TLSH