Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260617-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
29/06/2026, 01:12
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-06-27_f77eb8aeda08eaf7e01fb48fcde37e12_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-06-27_f77eb8aeda08eaf7e01fb48fcde37e12_cryptolocker_elex.exe
Resource
win11ltsc2024-20260617-en
6 signatures
150 seconds
General
- Target 2026-06-27_f77eb8aeda08eaf7e01fb48fcde37e12_cryptolocker_elex.exe
- Size 52KB
- Sample260629-bkt8wabs2l
- SHA256 b38af46ac6f2117a7727455e4624b0141d00d3bd16b8b5da06b8d84497982df7
- MD5 f77eb8aeda08eaf7e01fb48fcde37e12
- SHA1 39b7307751f7f19c4616f6653427efb9d7160d0d
- SHA512 0db124092a3994954af5dc62973cc8ea8daf93c83fdc461393433dcb763677de4936d598a57ee14cc5f0d225377258eb0be132bb969bab10dbaf743fd9d4504c
- SSDEEP 1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatSs:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7B
- TLSH T1DE33DC396ED515F2D377DAB7E5F695C2F922B9223912880D40CB2F4409B3B52BCA1D0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000a00000001b66d-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000a00000001b66d-12.dat CryptoLocker_set1 - Executes dropped EXE 1 IoCs
pid Process 4760 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 2026-06-27_f77eb8aeda08eaf7e01fb48fcde37e12_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 3156 wrote to memory of 4760 3156 2026-06-27_f77eb8aeda08eaf7e01fb48fcde37e12_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-06-27_f77eb8aeda08eaf7e01fb48fcde37e12_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-06-27_f77eb8aeda08eaf7e01fb48fcde37e12_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3156 -
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:4760
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hurok.exe
- Size 52KB
- SHA256 a279256acbcf6953a5aff42c405a51c99968f18d950391bb7c6cc2faec139932
- MD5 3ab242a9f0a21c8b975e3d78eb157161
- SHA1 74df371e92587177393034b9ef5eb2b6302fb012
- SHA512 8085cae705399bc7743bc65d1fbed4f028740823ca6ffe76eb4fd73122789f7cb0a11c565221b2cb2f40f6abc74ecf9a1c85fa2cfe7317191713255720f01faf
- SSDEEP 1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatSg:aq7tdgI2MyzNORQtOflIwoHNV2XBFV71
- TLSH T10B33DC396ED515F2D377DAB7E5F695C2F922B9223912880D40CB2F4409B3B52BCA1D0E
- MD5 SHA1 SHA512 SSDEEP TLSH