Analysis
- max time kernel
150s - max time network
155s - 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, 07:08
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_61a1111f53a22476449ca6c51a5eba6a_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_61a1111f53a22476449ca6c51a5eba6a_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_61a1111f53a22476449ca6c51a5eba6a_cryptolocker_elex.exe
- Size 56KB
- Sample260820-hydxdavtbv
- SHA256 ba8d67305c7c63ed5d74d25155cbbf77fc7f15ff1802c172baf486d829fcdacd
- MD5 61a1111f53a22476449ca6c51a5eba6a
- SHA1 6c474d936c57b9301a6d366873b2bbf8468d7831
- SHA512 b3f20d5ce3f1ec8f707429e15b6b2795f2975c60738517fb6e6288092ea6ebb62d84082e23b740003b6a0d730835dd61bd06cec7d9f7a25a44b77ad7a23ef22b
- SSDEEP 768:br74zYcgT/Ekd0ryfjXaoP+NSBz1EXEl5EyKaIZsIunqpeNswmm:br6YcA/X6GLadNSBBSm5zI/W1z
- TLSH T15743F8397FD62A72D3778EB195F791C3B93AB82239158C0D44DE13484933F52ADA290E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/3356-0-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3356-3-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001c504-14.dat CryptoLocker_rule2 behavioral2/memory/1356-19-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1356-27-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1356 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_61a1111f53a22476449ca6c51a5eba6a_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 3356 wrote to memory of 1356 3356 2026-08-20_61a1111f53a22476449ca6c51a5eba6a_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_61a1111f53a22476449ca6c51a5eba6a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_61a1111f53a22476449ca6c51a5eba6a_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3356 -
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:1356
-
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 88fbf9abac468e96ebabd3316f84ba34d72d1906290a8830e80fda99eaae050b
- MD5 2c267654252cc8ced04fb4aa1c388c6c
- SHA1 dc0690a8702d1cb4113282cd91b4407ac41ee164
- SHA512 4d4590f23b60c8245a8dee0614441e48f4240f694ce2ea2ea21a2c6f3f50e6721be96ceb2a97647510dc7ecda6182f95b86a8560940e03aa7f5c08d27805f5e5
- SSDEEP 768:br74zYcgT/Ekd0ryfjXaoP+NSBz1EXEl5EyKaIZsIunqpeNswm/:br6YcA/X6GLadNSBBSm5zI/W1K
- TLSH T12243F8397FD62A72D3778AB195F791C3B93AB83239158C0D44CE13484933F52AD62A0E
- MD5 SHA1 SHA512 SSDEEP TLSH