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
18/08/2026, 08:12
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-18_9fa828017855684db0ea2ac07f886647_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-18_9fa828017855684db0ea2ac07f886647_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-18_9fa828017855684db0ea2ac07f886647_cryptolocker_elex.exe
- Size 47KB
- Sample260818-j3valayerc
- SHA256 91e0cddb7810c9cd1994cddbfcc59006a2a327ae0cee291555d3f254a0e1c1af
- MD5 9fa828017855684db0ea2ac07f886647
- SHA1 97b09bd5aa86face80b50da4b4e8b284306a3ad6
- SHA512 f8d7f5d5eada7c37a2f187e9e7a16fc82884de5b04da7059346b952f292fa085f8d7c28af480567db9fc6e2dbc51e97a8a706c45de66d274841af1e901d1dca2
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhzeS:bgGYcA/53GAGgIvF7Ex
- TLSH T1412321387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444C23F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5668-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0008000000019ce0-13.dat CryptoLocker_rule2 behavioral2/memory/5092-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5092-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5092 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 2026-08-18_9fa828017855684db0ea2ac07f886647_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 5668 wrote to memory of 5092 5668 2026-08-18_9fa828017855684db0ea2ac07f886647_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-18_9fa828017855684db0ea2ac07f886647_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-18_9fa828017855684db0ea2ac07f886647_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5668 -
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:5092
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 466727f166926672b89124410b15be143e21ed0295c02d8a830484b0f2a65584
- MD5 218fc23b463b82e304d5e8ef75ce1046
- SHA1 d66e5a765bbb10b37d7cd4ed7f8fd48b34db8de1
- SHA512 68d7a3900b8394be7f6f4d3849de5143d080f1fb7b86eb4f2f6d9885bb08db1bb38129a8a1eec1aa7ffbd3f2589607bc26b2e09c281842630834e3354fd090ff
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhze9:bgGYcA/53GAGgIvF7E+
- TLSH T1FE2321387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444C23F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH