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
21/08/2026, 04:36
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-21_4c1ee238748df6c191805fd308377a4d_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_4c1ee238748df6c191805fd308377a4d_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-21_4c1ee238748df6c191805fd308377a4d_cryptolocker_elex.exe
- Size 32KB
- Sample260821-e8qgdashpg
- SHA256 a460417a8242de2756e79516aaad9b1f2bbe772c6bbc6da9558da55487473d12
- MD5 4c1ee238748df6c191805fd308377a4d
- SHA1 687c54a1a80c02b3e53e74ad6c2de7565bda2710
- SHA512 262efe1a85f53dc8021191c76aee78f859ed8043c462aeb0cfcf562fe59f4bab4325f7e15b1d9d6750a0481ed9fc3acc2dc5b0e0a9f8d7394a5d318d6565679e
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDzaNYqAy/YtY3GD:bA74zYcgT/Ekd0ryfjLzViYtYa
- TLSH T170E2D9387BD62871D37B9E7555F7A0827979B8323E248C4E58CF23888D32B52EC4255D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4300-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b000000019cb8-13.dat CryptoLocker_rule2 behavioral2/memory/5304-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5304-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5304 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 2026-08-21_4c1ee238748df6c191805fd308377a4d_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 4300 wrote to memory of 5304 4300 2026-08-21_4c1ee238748df6c191805fd308377a4d_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_4c1ee238748df6c191805fd308377a4d_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_4c1ee238748df6c191805fd308377a4d_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4300 -
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:5304
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 32KB
- SHA256 5b994aefcf9af81c0f51f424e8948fcb812f76b2f4b66727603bba885acbe18c
- MD5 ba7026983a80f50442c2abc5291de491
- SHA1 6d28b01607df85986dd9736ff24b92aadb474576
- SHA512 15b51f4e9ff92f699e72a0771adb52c3abbd2eece48dfb70e16c1567fe377309478944383e9ba9b57605efed4cd6db50f30c180bebd9f89f23a174710ce213d3
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDzaNYqAy/YtY3Gy:bA74zYcgT/Ekd0ryfjLzViYtYj
- TLSH T162E2E9387BD62871D37B9E7595F7A082797978323E258C4E58CE23888D32B52EC4264D
- MD5 SHA1 SHA512 SSDEEP TLSH