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, 00:59
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_0e723d581261a49b0c7475be9065e7ac_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_0e723d581261a49b0c7475be9065e7ac_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_0e723d581261a49b0c7475be9065e7ac_cryptolocker_elex.exe
- Size 41KB
- Sample260821-bb9xzagh39
- SHA256 cc982465f0c70c8c709e9ea57a0bc26479fc1c02c2ea7488c02ee16fe51b21a1
- MD5 0e723d581261a49b0c7475be9065e7ac
- SHA1 b6988f11ae573f3ed00d6320f969af5c5ed78148
- SHA512 6d124daa680b15ff4df0a67ae23973c0a0c71a0fda5badce94acf60c8db0ddb7e48378f956ccac99dbf0b69023554874cd59988d9379b51103731a3fd6560c36
- SSDEEP 768:bA74zYcgT/Ekd0ryfjLzViYmGl3J2dBqW3xEnnG9:bA6YcA/X6G/zVinyUug8y
- TLSH T182132E3C6AD62972D3BBDAB585F791C2B935B8233A158C0E54CB13844C33F66BC9251E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/996-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b00000001136a-13.dat CryptoLocker_rule2 behavioral2/memory/4132-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4132-26-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4132 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 2026-08-20_0e723d581261a49b0c7475be9065e7ac_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 996 wrote to memory of 4132 996 2026-08-20_0e723d581261a49b0c7475be9065e7ac_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_0e723d581261a49b0c7475be9065e7ac_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_0e723d581261a49b0c7475be9065e7ac_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:996 -
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:4132
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 88b3e8b3e1bc49b0dac8bd209003a2c46be9933637a6ffd0363a510c531f5bb6
- MD5 a3f94d7db6f74d42edf89ff55ddc8e5c
- SHA1 e5630000a340352495fd4edb4673cfd811280c2a
- SHA512 e4bcd179b9af01f3582befba299eafc8a8c0b4c69927f092e88257b02486ecda097b1bf904179a3e6ae799453255288428b54e98fc9b38ddee3ee7652ebba13f
- SSDEEP 768:bA74zYcgT/Ekd0ryfjLzViYmGl3J2dBqW3xEnnGW:bA6YcA/X6G/zVinyUug8Z
- TLSH T14E132F3C6AD62972D3BBDAB585F751C2B935B8233A15880E54CB13844C33F66BC9261E
- MD5 SHA1 SHA512 SSDEEP TLSH