Analysis
- max time kernel
150s - max time network
150s - 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, 04:14
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-09_01d6fcf0a341fa85dd06030a71ef1fce_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-09_01d6fcf0a341fa85dd06030a71ef1fce_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-09_01d6fcf0a341fa85dd06030a71ef1fce_cryptolocker_elex.exe
- Size 52KB
- Sample260809-etz29shk6z
- SHA256 32e802db0d5b95e197cc0c6bf7ad1523b76fa701aba83f6b335d1e8c268eec2a
- MD5 01d6fcf0a341fa85dd06030a71ef1fce
- SHA1 e6311a520b226c18884978c47877dd038d37f0c9
- SHA512 83d5d2e214e3bb8839bed60638c82378087ea45ba42d3c00842b9a35de7925674d1ffb764d7b7daedb6e7b7fc48b9fe1a6d0cf7efb51f494b10b062287716d06
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ1J1ycb:bgGYcA/53GAGgIvFW179
- TLSH T1B23311387BE52932E37BDFB586F691C6B935B8223D16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4900-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x00070000000187d5-13.dat CryptoLocker_rule2 behavioral2/memory/3456-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3456-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3456 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_01d6fcf0a341fa85dd06030a71ef1fce_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 4900 wrote to memory of 3456 4900 2026-08-09_01d6fcf0a341fa85dd06030a71ef1fce_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-09_01d6fcf0a341fa85dd06030a71ef1fce_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-09_01d6fcf0a341fa85dd06030a71ef1fce_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4900 -
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:3456
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 53KB
- SHA256 f460eeeb64f99bf6cc37557c654159d5cec74351f8c66266f1c33b856876667e
- MD5 fcc41a573761bfb641a6e77491cfadd0
- SHA1 471704c059d6eaf520faecf2ac11f9c7f779d34a
- SHA512 c21f76836dc7b886999ba6cf5f27dd297a4791708e5e699d12868cce739c3da4935d7bfc90cac00790f4a9c11ec5ce23b7d14c23fbafa80c017b7b74f3e6d0d9
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ1J1ycf:bgGYcA/53GAGgIvFW175
- TLSH T1763311387BE52932E37BDFB586F691C6B935B8223D16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH