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, 07:12
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_4c7b0ae0f4213a54a2dad3df9a5388c9_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_4c7b0ae0f4213a54a2dad3df9a5388c9_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_4c7b0ae0f4213a54a2dad3df9a5388c9_cryptolocker_elex.exe
- Size 35KB
- Sample260820-h11txsca63
- SHA256 fb37d4a75de7f5777b697171cd7fde67fb0ef8c97820da46d6e0bbe73cf69645
- MD5 4c7b0ae0f4213a54a2dad3df9a5388c9
- SHA1 2c174a09e076d3b9dadecd6bc0f51e7b1c3bb773
- SHA512 c566f354966c51f3cba056c5eb732c748657eea98196b99c2e694233e0ad0b79806091380e5c1426ef7a1aca05c12ec01197954bef7b0322637adebb10d4e513
- SSDEEP 768:bIDOw9UiaCHfjnE0S16avdrQFiLjJvZxTAk:bIDOw9a0Dnoc+Fkk
- TLSH T13FF2843CAEE56872E2B7AAB595F751C2F834B9123A15484E94CF63840D32F57FCA120D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral2/memory/4416-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0009000000016cd6-12.dat CryptoLocker_rule2 behavioral2/memory/3904-25-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3904 lossy.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 2026-08-20_4c7b0ae0f4213a54a2dad3df9a5388c9_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language lossy.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4416 wrote to memory of 3904 4416 2026-08-20_4c7b0ae0f4213a54a2dad3df9a5388c9_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_4c7b0ae0f4213a54a2dad3df9a5388c9_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_4c7b0ae0f4213a54a2dad3df9a5388c9_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4416 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3904
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 35KB
- SHA256 b78eed225607f7bd775183994384010f83d4b12968e7f6de7b8f26f0d55b069f
- MD5 b4ac40f57c0f5f5eae623a262243b77f
- SHA1 e8886fb6845cf7cb545dc2ac5717bb38ccd85851
- SHA512 6ace5a326b5a653f37d40be427d479639b4260131a6a7f4705b4b57adc77dea7ab8a98101ada38f6e18f955416cbe180fc83fffff81ab04676b7b590cba47198
- SSDEEP 768:bIDOw9UiaCHfjnE0S16avdrQFiLjJvZxTASY:bIDOw9a0Dnoc+Fkn
- TLSH T11CF2843CAEE52872E2B7AAB595F751C2F874B9123A15484E94CF63840D32F57FCA120D
- MD5 SHA1 SHA512 SSDEEP TLSH