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
20/08/2026, 01:56
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-19_1ff30e11fe50a25aa79377700027960d_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-19_1ff30e11fe50a25aa79377700027960d_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-19_1ff30e11fe50a25aa79377700027960d_cryptolocker_elex.exe
- Size 56KB
- Sample260820-ccnlssdl7v
- SHA256 d226a3649189cf7d124fbfa0878a98e474e1ae7cb381b9e280f1ad05d6d8ecf2
- MD5 1ff30e11fe50a25aa79377700027960d
- SHA1 d8081d78c1ef57213398a8481154206df7c9512e
- SHA512 7cf5d321f9bf764465dfdb4b5393567863dd69fcd4636de6b7b40a2542db36943d830a2ad7cf5791bc1d5874bf86c44f4108a82c5b79a82a12088722848d12b7
- SSDEEP 768:br74zYcgT/Ekd0ryfjXaoP+NSBz1EXEl5EyKaIZsIunqpeNswmS:br6YcA/X6GLadNSBBSm5zI/W1X
- TLSH T18343F8397FD62A72D3778AB195F791C3B93AB83239158C0D44CE13484933F52ADA290E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/5460-0-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5460-3-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x00160000000115f1-13.dat CryptoLocker_rule2 behavioral2/memory/940-19-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/memory/940-27-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 940 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 2026-08-19_1ff30e11fe50a25aa79377700027960d_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 5460 wrote to memory of 940 5460 2026-08-19_1ff30e11fe50a25aa79377700027960d_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-19_1ff30e11fe50a25aa79377700027960d_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-19_1ff30e11fe50a25aa79377700027960d_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5460 -
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:940
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 56KB
- SHA256 8fb95a70fcbe3ca0beae6c704c66288cd2599a9966ae66e34d818f8f29fb59d4
- MD5 8363fec98b5fb322d97baecd09934738
- SHA1 5f36590bf25546dc76998882958fab1013167bc4
- SHA512 8c8d980ddd3a349f687d1c5573a28146d5bead0b55c48add015956bf063928075887e8633fd27d473001486a2eaa2a9da0824b9df5587d10e9fcc3da3625e7bd
- SSDEEP 768:br74zYcgT/Ekd0ryfjXaoP+NSBz1EXEl5EyKaIZsIunqpeNswmP:br6YcA/X6GLadNSBBSm5zI/W1y
- TLSH T1FA43F8397FD62A72D3778AB195F791C3B93AB83239158C0D44CE13484933F56AD92A0E
- MD5 SHA1 SHA512 SSDEEP TLSH