Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
25/08/2026, 11:07
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-24_6b5c3cf4135f19f11400604cfc7cbcc0_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-24_6b5c3cf4135f19f11400604cfc7cbcc0_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-24_6b5c3cf4135f19f11400604cfc7cbcc0_cryptolocker_elex.exe
- Size 42KB
- Sample260825-m77chagh37
- SHA256 5ff25328bd96837d02e77169099bb05287f32dece5268a1500974a95a048142d
- MD5 6b5c3cf4135f19f11400604cfc7cbcc0
- SHA1 d97be8a8f1f956b772e57e781fe951ef8a5e1f2f
- SHA512 1200d2ba1346d861ea4c6b0e593e24b910edb08c324cd196bf206f547c34b1edc58254f6e18d9c6966bbc2e747d877ed38b466f4696baf70a9e187c694ba5854
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCPEYn:bgGYcA/53GAGgIvFuEG
- TLSH T1CB1376387FE62972E37BDFB586F691C67935B8223D16880D44CA53844833F66EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4100-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d000000019cd9-13.dat CryptoLocker_rule2 behavioral2/memory/2780-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2780-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2780 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 2026-08-24_6b5c3cf4135f19f11400604cfc7cbcc0_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 4100 wrote to memory of 2780 4100 2026-08-24_6b5c3cf4135f19f11400604cfc7cbcc0_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-24_6b5c3cf4135f19f11400604cfc7cbcc0_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-24_6b5c3cf4135f19f11400604cfc7cbcc0_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4100 -
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:2780
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 71d0d10bd88c2e543aa18db4074cd32b2ad87fc79295501b86bfe1ce56294cbc
- MD5 856420326e034e81c2a83b5646f171e8
- SHA1 39de29b8d65f6141db57258ee693dccb5985d615
- SHA512 06c37dfe1532da853fb2029b60782a7c5008578743bf01b99f745d280651b3caa919ba5d7f1e3e624ecd685857766c7a6cb0022fff3e33e1d15de5aed7c25419
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCPEYe:bgGYcA/53GAGgIvFuEX
- TLSH T10D1375387FE62972E37BDFB586F691C67935B8223D16880D44CA53844833F66EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH