Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
10/09/2026, 06:00
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-08_48c88ac098eb5d6bb30fa464ddaced51_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-08_48c88ac098eb5d6bb30fa464ddaced51_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-08_48c88ac098eb5d6bb30fa464ddaced51_cryptolocker_elex.exe
- Size 29KB
- Sample260910-gqlfta1zbz
- SHA256 f9ce68d196393b7f8ab15056937d2eed0e108bb3db657f3069d0aebae444dc9e
- MD5 48c88ac098eb5d6bb30fa464ddaced51
- SHA1 6a59f4433af99948827ef5d663e1f12fb7c8b684
- SHA512 ea1f77c683ca48c04c953b343ceab828ef36436af44df5df392dfe948ccdcd4c0f8b5162b91d70cc1a380d80b0c12cee17c65dae983dd3c318aaea6fc2cee78d
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDz/EDK:bA74zYcgT/Ekd0ryfjLz/OK
- TLSH T1C4D22B387BD72C72D1779EB555FBA182B83ABC213A28484E58CF3388CD32751B84214E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1920-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b853-13.dat CryptoLocker_rule2 behavioral2/memory/4172-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4172-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4172 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 hasfj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-09-08_48c88ac098eb5d6bb30fa464ddaced51_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1920 wrote to memory of 4172 1920 2026-09-08_48c88ac098eb5d6bb30fa464ddaced51_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-08_48c88ac098eb5d6bb30fa464ddaced51_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-08_48c88ac098eb5d6bb30fa464ddaced51_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1920 -
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:4172
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 29KB
- SHA256 37bd7e9f8852f364a5195c2fbe3c0ab9da89cf73874ac964bc2291fb65ad5f7f
- MD5 60f931d08d37d87e301fbfa238e163c0
- SHA1 d34b904aed6b489ae6f62928cf2a616ba29e653f
- SHA512 f4f925bd7563f2061d491a975d463845a9779163ade88cf8197d4e0fdc25ffbf3cfef8501b4e302d0ab423a4182e8dae3a2dcb3501c91321d309bc1c85a44399
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDz/EDS:bA74zYcgT/Ekd0ryfjLz/OS
- TLSH T117D22B387BD72C72D1779EB555FBA182B87ABC213A24484E58CF3388CD32752B84254E
- MD5 SHA1 SHA512 SSDEEP TLSH