Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
26/08/2026, 21:58
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-25_6f4fe79951d4500e459736524ac1f26d_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-25_6f4fe79951d4500e459736524ac1f26d_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-25_6f4fe79951d4500e459736524ac1f26d_cryptolocker_elex.exe
- Size 48KB
- Sample260826-1vy29aff49
- SHA256 a117ccedac30380e9440ece1539d4385ba366b98daa4d0553b09a2b70ee3ad40
- MD5 6f4fe79951d4500e459736524ac1f26d
- SHA1 93c3982f94a6e06589e1e8cb2b522761431c88c5
- SHA512 0225f5c9a4c9ca58e1d9c7e1cd1fc7b4bab4d2fda9960343773e7fb9ab2aabc1ab10f417202ea92b68f8bc59bd1c5ff7cb85db08397b286fff8028790fffdbe7
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqL:bgGYcA/53GAGgIvF7Ek
- TLSH T1F92322387BE52932E37BDFB586F691C67975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4148-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000019cb3-12.dat CryptoLocker_rule2 behavioral2/memory/2728-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2728-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2728 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 2026-08-25_6f4fe79951d4500e459736524ac1f26d_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 4148 wrote to memory of 2728 4148 2026-08-25_6f4fe79951d4500e459736524ac1f26d_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-25_6f4fe79951d4500e459736524ac1f26d_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-25_6f4fe79951d4500e459736524ac1f26d_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4148 -
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:2728
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 48KB
- SHA256 0d2f269c5a677dbcbd8737bca4d89b4c7478ea943f7e1a7e9c66aa8e8cf44056
- MD5 d0b36e77b13abd5422d3e1fec3d055a9
- SHA1 9dc8d11df8b071d47bec2304d2a2b261acc40ca8
- SHA512 15b437569bc5fcaf3422b158003c46790e62ba72d2c62de58343c3321b85f4de35c67a71da93b66a287fe8c580f205a9dd29cb6eea64cb68feab6c64965b950b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqS:bgGYcA/53GAGgIvF7EB
- TLSH T1872322387BE52932E37BDFB586F691C67975B8223D16980D40CA43444C33F65ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH