Analysis
- max time kernel
149s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
27/10/2026, 12:18
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-10-26_8ba698821c8f416f7a4a8a92d96d1566_cryptolocker_elex.exe
Resource
win10v2004-20260911-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-10-26_8ba698821c8f416f7a4a8a92d96d1566_cryptolocker_elex.exe
Resource
win11ltsc2024-20260911-en
7 signatures
150 seconds
General
- Target 2026-10-26_8ba698821c8f416f7a4a8a92d96d1566_cryptolocker_elex.exe
- Size 34KB
- Sample261027-pgv8nady6m
- SHA256 e2034f3dec507e57de419bf0b7e4ea893732dae40890d4b36722afdf0ad5d690
- MD5 8ba698821c8f416f7a4a8a92d96d1566
- SHA1 56e7b13d50f9258da18481823b924ac8e17cd043
- SHA512 e89af6c90a42e70250e25ad08e5a513a0f4557f84f90e86ecc957ced6d00f9a1c2909192d8062f31667daab16420ac7340addc61ae6682fd3409f46d69d56e17
- SSDEEP 768:df1K2exzikBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGS/YIm7wm3:B1KhxTwtdgI2MyzNORQtOflIwoHNV2X1
- TLSH T18CF25436AEC515E6D673AA73F4F792C2E927BD563922450E108A3F0149F3781BCA1D0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000600000001b859-11.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000600000001b859-11.dat CryptoLocker_set1 - 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).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname hurok.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain hurok.exe - 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 2026-10-26_8ba698821c8f416f7a4a8a92d96d1566_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 4276 wrote to memory of 2964 4276 2026-10-26_8ba698821c8f416f7a4a8a92d96d1566_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-10-26_8ba698821c8f416f7a4a8a92d96d1566_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-26_8ba698821c8f416f7a4a8a92d96d1566_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4276 -
C:\Users\Admin\AppData\Local\Temp\hurok.exe"C:\Users\Admin\AppData\Local\Temp\hurok.exe"2⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- 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 35KB
- SHA256 abfa121f011f2e7fdc262b132180091ebfa0bbcdb7d4fdbb8d876997b21658a3
- MD5 59fdb1c4a58078289d35be2cc4b01d16
- SHA1 6c6eef8e70854e21774f43405d5415c8129aa795
- SHA512 23b85954b101c7df6bd482e96003caabe255c2edee77cd19d388637b59c419e27fef167a464f9c64d846740a85fc97fe7c76738856b1288e3ee6bf862e819839
- SSDEEP 768:df1K2exzikBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGS/YIm7wmo+:B1KhxTwtdgI2MyzNORQtOflIwoHNV2X9
- TLSH T19AF25436AEC515E6D673AA73F4F691C2E927BD563922450E108A3F0009F3781BCA1D0E
- MD5 SHA1 SHA512 SSDEEP TLSH