Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/08/2026, 04:45
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-08-05_646a1625adc96290330854fe37faa029_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-05_646a1625adc96290330854fe37faa029_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
7 signatures
150 seconds
General
- Target 2026-08-05_646a1625adc96290330854fe37faa029_cryptolocker_elex.exe
- Size 81KB
- Sample260805-fdlelsycnd
- SHA256 04cb74b1fd02a2cdf1b020b489c4387f9f11124f9b43390e5f0759c8f65ebe01
- MD5 646a1625adc96290330854fe37faa029
- SHA1 9515af0d7af48c53943486af112716f166b79ee5
- SHA512 30607cb274a61a98f9357b9339f77c813930cc4ac72456188ead99b9adbae55e631076c0c7d18ac6c9877efedd05d1d92457bb0230040b70cf597e51599f0514
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/6EF:lj+VGMOtEvwDpjubwQEI8UDV/
- TLSH T1C783BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/4140-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4140-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0006000000016b3a-14.dat CryptoLocker_rule2 behavioral2/memory/4976-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4976-21-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral2/memory/4140-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/4140-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/files/0x0006000000016b3a-14.dat CryptoLocker_set1 behavioral2/memory/4976-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/4976-21-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral2/memory/4140-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4140-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x0006000000016b3a-14.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/4976-19-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4976-21-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 4976 misid.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 2026-08-05_646a1625adc96290330854fe37faa029_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language misid.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4140 wrote to memory of 4976 4140 2026-08-05_646a1625adc96290330854fe37faa029_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-05_646a1625adc96290330854fe37faa029_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-05_646a1625adc96290330854fe37faa029_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4140 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4976
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 81KB
- SHA256 b3c8edc311812de5e95f65635bd3c7437e4634b505b09de8a263c02d3529f5f7
- MD5 f32ef2cc1fa3042fc72eb754833603d4
- SHA1 bb86e77cf5a443eb6f95e644d7ed9cff75affea1
- SHA512 9e2de8f6f4ef25da92c3b052e0473fb8db88b08dbcd21df32bd9e997ffd6acf6fb4447e3b18a271de8705460e0bb1b92513ca09833988c7af1c49165e24a7238
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/6ES:lj+VGMOtEvwDpjubwQEI8UDV8
- TLSH T1AD83BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH