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
18/07/2026, 05:45
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-18_f9df25320c33ad0e9c9b3e02e9eff089_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-18_f9df25320c33ad0e9c9b3e02e9eff089_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-18_f9df25320c33ad0e9c9b3e02e9eff089_cryptolocker_elex.exe
- Size 47KB
- Sample260718-gf2eaahw4j
- SHA256 5ae8c6e4ce1fd97e259378f2d29ab5825d4b16d93caa0c22379ccdad465b348c
- MD5 f9df25320c33ad0e9c9b3e02e9eff089
- SHA1 f4232191b3e7b5dd840c7c1add0de314e5f15b99
- SHA512 9a4254df4548ae8c0acd3e2fdd598989cd635f4c9b7e35ae4b25d6932ac97764b26f94f06a6ec824a78bb4e5d1d9d9eaf28c635cd76de428d704a7bc528c35d9
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhuP:bgGYcA/53GAGgIvF7EkP
- TLSH T1482322387FE52932E37BDFB586F691C6B975B8223D16980D40CA43444833F65ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4608-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000011390-13.dat CryptoLocker_rule2 behavioral2/memory/5080-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5080-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5080 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 2026-07-18_f9df25320c33ad0e9c9b3e02e9eff089_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 4608 wrote to memory of 5080 4608 2026-07-18_f9df25320c33ad0e9c9b3e02e9eff089_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-18_f9df25320c33ad0e9c9b3e02e9eff089_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-18_f9df25320c33ad0e9c9b3e02e9eff089_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4608 -
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:5080
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 09496a7b96468bcdd02d49fd6d3341bb43903c0b9fb8fa0825e2cff513083415
- MD5 282a1263a4d6d28fbe7b1f94415daa98
- SHA1 f76784e040a4fca881f22af4e4d47df74f1e68e1
- SHA512 682213a01444e6bd21782fdc9f12397cba7060bcee7b821b6056a9524bed669065b6589ba680b81867bde055181bc52534f437d0a3271111835389a1ca9480c4
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhum9:bgGYcA/53GAGgIvF7Ekq
- TLSH T1242322387FE52932E37BDFB586F691C6B975B8223D16980D40CA43444833F65ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH