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, 17:02
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-09_2ed43d2fa4fc2641d14427d2ad18294d_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-09_2ed43d2fa4fc2641d14427d2ad18294d_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-09_2ed43d2fa4fc2641d14427d2ad18294d_cryptolocker_elex.exe
- Size 41KB
- Sample260809-vkkh8asdka
- SHA256 508c5bae359496bd129f6bacb3d1fff06ba055d13dcab759203a99a9bba66798
- MD5 2ed43d2fa4fc2641d14427d2ad18294d
- SHA1 0d8a35cac3f29199861b04bf2f8e0cdd3dcd6245
- SHA512 3b679f5241150f0b57d221472d674afa91b7c5275040f1d113a8f63051c8890e88fa5b3a7608b18d2476d59f7bf5c31200011d31a7de8acffb4cec8a01ea15f2
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCD5:bgGYcA/53GAGgIvFq5
- TLSH T1471374387FE62972E37BDFB586F691C67935B8223D16880D44CA53844833F62DC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/6960-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x00160000000118ee-13.dat CryptoLocker_rule2 behavioral2/memory/1320-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1320-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1320 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_2ed43d2fa4fc2641d14427d2ad18294d_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 6960 wrote to memory of 1320 6960 2026-08-09_2ed43d2fa4fc2641d14427d2ad18294d_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-09_2ed43d2fa4fc2641d14427d2ad18294d_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-09_2ed43d2fa4fc2641d14427d2ad18294d_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6960 -
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:1320
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 41KB
- SHA256 1021900bb5ee864bf2bd3ef89af38ddf5b35d977093d418fe3f3bdaac5627916
- MD5 8070efff8f131caffdc64db0a6e66574
- SHA1 ef033ab62e64e9d57a9a10dc704f2f9dbfac2f75
- SHA512 60577a39035644895205ff924c46997822409bfaade3177afadb8e606a89c392f3ba31ee558c7170190b04d2c94f061137c4cae21894d51a61617bfc934d751c
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCDK:bgGYcA/53GAGgIvFqK
- TLSH T1121374387BE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH