Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
21/07/2026, 13:12
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-07-21_be102d60738e23a9aac001f13ec5d96f_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-21_be102d60738e23a9aac001f13ec5d96f_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-07-21_be102d60738e23a9aac001f13ec5d96f_cryptolocker_elex.exe
- Size 36KB
- Sample260721-qfvfeaaa64
- SHA256 e9f7bc3a52e763f51eea67960256cafaa9ecbaa85dd08a0be91e8dbf57cdb223
- MD5 be102d60738e23a9aac001f13ec5d96f
- SHA1 006aa0b66a6465b4bcd065bf749f3e5d4b4024b1
- SHA512 64ca9bfee1e351f88c25a618818f35a688e10426e1f5514b4bb483d546b93f5b72172e4ca4c985118c75bc5751dcdf918ff14987f277dbd5d7463d77daa0a92e
- SSDEEP 768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNf2VlU9:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XW
- TLSH T1290353326FD415E1D777AA73F5F791C2E926BD262C22850E008A7F4409F3A91EDA1D0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000800000002461d-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000800000002461d-12.dat CryptoLocker_set1 - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2937465464-4167303362-2236413517-1000\Control Panel\International\Geo\Nation 2026-07-21_be102d60738e23a9aac001f13ec5d96f_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 2964 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 2026-07-21_be102d60738e23a9aac001f13ec5d96f_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 4216 wrote to memory of 2964 4216 2026-07-21_be102d60738e23a9aac001f13ec5d96f_cryptolocker_elex.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-21_be102d60738e23a9aac001f13ec5d96f_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-21_be102d60738e23a9aac001f13ec5d96f_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4216 -
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:2964
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hurok.exe
- Size 37KB
- SHA256 8c3caa17e5a9022fa1673bbf4222864d0b444948db03bab4b5a6238d61a57265
- MD5 9f44448b3010c3401808569a3e11e445
- SHA1 23bd18a31b87edc9620979fc304b8af5be45b9a4
- SHA512 81bcc17ead3f8ed320a1d7641f330a14afd2e1769efddfdd3d0b2729f5733bdc88474e7a03e62827777669716fd45ec23d289448c8afc00d5dfde2f286e37932
- SSDEEP 768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNf2VlUP:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XQ
- TLSH T15B0354326FD415E1D777AA73F5F791C2E926BD262C22850D008A7F4409F3A51EDA1D0E
- MD5 SHA1 SHA512 SSDEEP TLSH