Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
03/08/2026, 16:42
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-03_df12fc2cb3b2f41bbd91430aab974bee_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-03_df12fc2cb3b2f41bbd91430aab974bee_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-08-03_df12fc2cb3b2f41bbd91430aab974bee_cryptolocker_elex.exe
- Size 4.6MB
- Sample260803-t7mresfl91
- SHA256 b891cddfbe3d94d25ea221f98a54c455dd9b294bf9de520c605cfa5283a94db9
- MD5 df12fc2cb3b2f41bbd91430aab974bee
- SHA1 943e5d557d82030018f46adb65989dfe9cb1ef94
- SHA512 3d5f927d25246c6d4ccf9487184b9f351dd28ab04ee8d32df95b80702b854acc77d88cc4e4860769e7716a4eb035855d02759002af1aa7801d1f456afd64c8b0
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTh:w/ZFIjBzF/ZFIjBzPEUush
- TLSH T1A8263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2168-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001c54f-13.dat CryptoLocker_rule2 behavioral2/memory/6092-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/6092-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x000d00000001c54f-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 6092 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 2026-08-03_df12fc2cb3b2f41bbd91430aab974bee_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 2168 wrote to memory of 6092 2168 2026-08-03_df12fc2cb3b2f41bbd91430aab974bee_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-03_df12fc2cb3b2f41bbd91430aab974bee_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-03_df12fc2cb3b2f41bbd91430aab974bee_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2168 -
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:6092
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 4.6MB
- SHA256 3ca58e54d2f8ca10844b9c3d464c13bb9153d66ae25287b880abc4d4f643d22b
- MD5 39f308cb99c81ee567fcf6de50928b6f
- SHA1 2312c1eb877b8d0ab7d6774eb3cda94a304f472a
- SHA512 4c72a1577f36c54dbe0587346fce468f692972b1d919c8745299c14a0a1200a36d8d96fe07186867d7c942394e14ca348d6175c5fc6915b3c05f0c85f16cdad9
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTK:w/ZFIjBzF/ZFIjBzPEUusK
- TLSH T171263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH