Analysis
- max time kernel
150s - max time network
148s - 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, 12:01
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_f427a0043c0842fa87eaecaa6734059d_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_f427a0043c0842fa87eaecaa6734059d_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_f427a0043c0842fa87eaecaa6734059d_cryptolocker_elex.exe
- Size 33KB
- Sample260820-n62laswejf
- SHA256 82caed00da5db8c88982cd1d0f2b4c18e268aa85d19ce396462d0cea03fa069e
- MD5 f427a0043c0842fa87eaecaa6734059d
- SHA1 057b218e5730a77db39c66832f0fd0d9a9f89b1e
- SHA512 adfcc7174fbf146a1156491aeeccb71b7e4940ea3df20d89a058a7e215ad7251ff118745f3b73fc9953fe808b0ddf47aaf3bd1f8cc4b7927bbdda2b83faa78a6
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGSWLmV5tH:bG74zYcgT/Ekd0ryfjcMj
- TLSH T1ACE20735F7EB3C26CD36AEF4A0F790B1672F7819792478DE58ABE74D88B1240991D005
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/4648-0-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4648-3-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000019caa-14.dat CryptoLocker_rule2 behavioral2/memory/364-19-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/364-21-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 364 hasfj.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 hasfj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-20_f427a0043c0842fa87eaecaa6734059d_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4648 wrote to memory of 364 4648 2026-08-20_f427a0043c0842fa87eaecaa6734059d_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_f427a0043c0842fa87eaecaa6734059d_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_f427a0043c0842fa87eaecaa6734059d_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4648 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:364
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 33KB
- SHA256 730bfa34cadf942763facf3c0ad14e54cedbf30b1164d5216f9515685f9b06f7
- MD5 11eefb9d2daa1e8196c089e2360fbdf5
- SHA1 28997f87acae9ee4561688d6df9a724be97f5064
- SHA512 16a3b750a9a92fdd28585737870813f4069eaf19600b06e1fcc3241582228fecea385408b26bbada5cc259f7de7c79655a77d62f229ec65f03f4085bd846bfa1
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGSWLmV5tl:bG74zYcgT/Ekd0ryfjcMB
- TLSH T16BE20735F7EA3C26CD36AEF4A1F790B1672F7818792478DE48ABE74D88B12419A1D005
- MD5 SHA1 SHA512 SSDEEP TLSH