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
09/08/2026, 04:07
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-09_72116c33f5fc36177d93926e2ed0dd91_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-09_72116c33f5fc36177d93926e2ed0dd91_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-09_72116c33f5fc36177d93926e2ed0dd91_cryptolocker_elex.exe
- Size 36KB
- Sample260809-ep3ycszekd
- SHA256 ce9b6c8bfbd880052a4a4676c607f3232f807c0e83502ae8f32e9426f356f3e2
- MD5 72116c33f5fc36177d93926e2ed0dd91
- SHA1 171e8540bbea880be209efffa296b69e3968c1ff
- SHA512 e8c3a71843ac602eb792a00184e1fc19993e62ec57f01bafc360eef670b67c834733c9505478f4c253daa0130cef53723683ecd8f728056416edf3b201dcacf6
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXuaBflNGesjNY:bG74zYcgT/Ekd0ryfjWlNGvNY
- TLSH T19E03D435FBEA3822DA3BAEF491F640F2BB3F7819791078CE049BE34D4872611995D509
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/1856-0-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1856-3-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0008000000016cdf-14.dat CryptoLocker_rule2 behavioral2/memory/5884-19-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5884-21-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5884 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 2026-08-09_72116c33f5fc36177d93926e2ed0dd91_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1856 wrote to memory of 5884 1856 2026-08-09_72116c33f5fc36177d93926e2ed0dd91_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-09_72116c33f5fc36177d93926e2ed0dd91_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-09_72116c33f5fc36177d93926e2ed0dd91_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1856 -
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:5884
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 37KB
- SHA256 afd6f052224457915ada382a18c401eab6e3fe2e87cb765762bb459a0eab6a1d
- MD5 710c341fda28a69bab3f4dcce59533a1
- SHA1 494690cbc056e5dcc881ed08a77ba22828c3dcbd
- SHA512 13212e3b7bece31647a821fb1c0f373a4f480ff3307be8c1b305e2ca50691b26c53df6cf48fb4f03f5448bd59353bb0dd356143b67abea361b6eee28159da55f
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXuaBflNGesjNwz:bG74zYcgT/Ekd0ryfjWlNGvNa
- TLSH T11203D535FBEA3822DA3BAEF491F640F1BB3F7819791078CE049BE34D4872611995D509
- MD5 SHA1 SHA512 SSDEEP TLSH