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
21/08/2026, 03:48
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-21_e464397aff66158a7a606e398fbd90dd_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_e464397aff66158a7a606e398fbd90dd_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-21_e464397aff66158a7a606e398fbd90dd_cryptolocker_elex.exe
- Size 41KB
- Sample260821-eda37she32
- SHA256 f742f4dcb63e7ab1f4d739185ff284deffd2fdc3d7f81f775828db8259c61e41
- MD5 e464397aff66158a7a606e398fbd90dd
- SHA1 b1a8bd18b2678b857678e2eadb508035208bf75c
- SHA512 855bcdd809a90812fa858a662d9301c1fc9d235d7bee0d21ff7ec0e3161a72a43552846031ca3f937b3e3b4af7e981b762ed1d45418a71956fbbbde1d85aaa4e
- SSDEEP 768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICCqk:bIDOw9a0DwitDZr
- TLSH T15E131D3C6EE56872D3BBAAB595F751C2BD74B8123E154C0E84CB53850822F17FDA260E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1812-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b00000001136a-13.dat CryptoLocker_rule2 behavioral2/memory/3192-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3192-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3192 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 2026-08-21_e464397aff66158a7a606e398fbd90dd_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 1812 wrote to memory of 3192 1812 2026-08-21_e464397aff66158a7a606e398fbd90dd_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_e464397aff66158a7a606e398fbd90dd_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_e464397aff66158a7a606e398fbd90dd_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1812 -
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:3192
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 41KB
- SHA256 ba8e0509e979ba928ef83339403f2bfa8819303cc0f0ce3bf54aea08ce1e98bc
- MD5 b749aa569720184bb4d739946e0f12b6
- SHA1 13e454d58ed9f17d1265d538cbcec00d9f64d54c
- SHA512 839748fdf03f4b9300be2bb9d07c8bac967b1cb2746a8fe6726e3952c5258161fa9d0f5241d27c4a5fa9de1e8a4316128902770c6daaf226fba4ac8e7fd2d6de
- SSDEEP 768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICCqv:bIDOw9a0DwitDZo
- TLSH T13E131D3C6EE46872D3BBAAB595F751C2BD74B8123E154C0E84CB53850822F17FDA260E
- MD5 SHA1 SHA512 SSDEEP TLSH