Analysis
- max time kernel
150s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/08/2026, 04:08
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-09_6d3ffb82b73427132d47e9c1a9c9768b_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-09_6d3ffb82b73427132d47e9c1a9c9768b_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-09_6d3ffb82b73427132d47e9c1a9c9768b_cryptolocker_elex.exe
- Size 37KB
- Sample260809-ep9qxazemd
- SHA256 7697d81697b2c4685481b5d29a2b7cdbedc7f3bfab2acc7b19a890d93858f888
- MD5 6d3ffb82b73427132d47e9c1a9c9768b
- SHA1 d7fa8c362d011e1baa9bae505a4c4be215d6a7ba
- SHA512 03123c01d56604ddd37eb91db0c88bece2801b4416ca8ab42e2cd6a1c8d4968c99979887fd38cd03490910d6c9013a9b456a56211ee7e8e77d42657d53fcec3f
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSp91K:bgGYcA/53GAGgIvFiK
- TLSH T10F03A5387FD62972D37BDE7586F791C6B936B8223D16880D54CA53848C33B52EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4672-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b83c-13.dat CryptoLocker_rule2 behavioral2/memory/5648-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5648-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5648 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 2026-08-09_6d3ffb82b73427132d47e9c1a9c9768b_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 4672 wrote to memory of 5648 4672 2026-08-09_6d3ffb82b73427132d47e9c1a9c9768b_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-09_6d3ffb82b73427132d47e9c1a9c9768b_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-09_6d3ffb82b73427132d47e9c1a9c9768b_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4672 -
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:5648
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 37KB
- SHA256 b56aba9589a79c2a9f5575a70c6df2d02c622bbc8d40b0510c5ee2f12d7491f9
- MD5 492d33340e228bdddbc5500c9f4e2587
- SHA1 c7288dd4f03b262e97609f158c05b93f2d8ab58e
- SHA512 218fa7bcca6cd0660250b05e91ae386d98337e090061a796418f5c44993227f4c644e4ffa143e553ec03980635f68c6e941a0a0a8d3d78cd63215f1e24650fe5
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSp91D:bgGYcA/53GAGgIvFiD
- TLSH T1EB03A5387FD62972D37BDE7586F791C6B936B8223D16880D54CA53848C33B52EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH