Analysis
- max time kernel
67s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
25/09/2026, 08:19
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-24_65bcafe20ccfaeba437462b41e6c5eb7_cryptolocker_elex.exe
Resource
win10v2004-20260911-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-24_65bcafe20ccfaeba437462b41e6c5eb7_cryptolocker_elex.exe
Resource
win11ltsc2024-20260911-en
5 signatures
150 seconds
General
- Target 2026-09-24_65bcafe20ccfaeba437462b41e6c5eb7_cryptolocker_elex.exe
- Size 50KB
- Sample260925-j797lsts2k
- SHA256 b076727f200d30cc418c0dbeb5f0725566f714ad5da174c7a65bcabeb1be06a8
- MD5 65bcafe20ccfaeba437462b41e6c5eb7
- SHA1 566323cf175d49d1fe24856328a10d9f6ef9ea6f
- SHA512 d7c980c6206c26e56d64cbaf852f418c58a639e58523714f413e6d9e91d04f5832a0be9466aa31ed40f6e3a4327e3ce46433c99523aa2fc417409473590d75ee
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ1J1yMik:bgGYcA/53GAGgIvFW17pik
- TLSH T1E23322387FE62932E37BDFB586F691C6B93578223D16980D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5860-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b00000001b2cb-13.dat CryptoLocker_rule2 behavioral2/memory/3924-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3924-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3924 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 2026-09-24_65bcafe20ccfaeba437462b41e6c5eb7_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 5860 wrote to memory of 3924 5860 2026-09-24_65bcafe20ccfaeba437462b41e6c5eb7_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-24_65bcafe20ccfaeba437462b41e6c5eb7_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-24_65bcafe20ccfaeba437462b41e6c5eb7_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5860 -
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:3924
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 50KB
- SHA256 33639ee769af625aa3211cf32eec11bb0e2c736d1e5771b9ecb422dd7c1d3d2e
- MD5 77b39c14e1fef081ebbdeab478c31555
- SHA1 7936d3b627339142776b9dfed8992038a851edbd
- SHA512 5d2b40e64374d4df4e227957c81d63485f84619b7b64cb67d97a123dd47e47a5f0052097177547a34baded92ca1cd8ec8f9df1c04dd6940ac64dff865504799c
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ1J1yMiG:bgGYcA/53GAGgIvFW17piG
- TLSH T1E33322387FE62932E37BDFB586F691C6B93578223D16980D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH