Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
22/08/2026, 15:38
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-08-21_496661b8b76dfbdbde5216a598e278c0_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_496661b8b76dfbdbde5216a598e278c0_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
7 signatures
150 seconds
General
- Target 2026-08-21_496661b8b76dfbdbde5216a598e278c0_cryptolocker_elex.exe
- Size 81KB
- Sample260822-s3bb6ahn8w
- SHA256 754cff24f54792fec2198fc7bc53af5da19b056ec4399095f16d54ce1fee8655
- MD5 496661b8b76dfbdbde5216a598e278c0
- SHA1 0f27801722a3ff93dd8e19ef2532ae6c741344e8
- SHA512 6788f30d3edfe79f8ccd0887a908ffad01a65f6dda7899f19af3d25ecc4c9fcdae49b8fcd866de6d4ea79da26cecdab56c2ecf9de95ecbd75252a6b279014940
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/6Ee:lj+VGMOtEvwDpjubwQEI8UDVI
- TLSH T1DF83BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/2348-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2348-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000e000000016ccb-14.dat CryptoLocker_rule2 behavioral2/memory/6000-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/6000-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral2/memory/2348-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/2348-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/files/0x000e000000016ccb-14.dat CryptoLocker_set1 behavioral2/memory/6000-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/6000-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral2/memory/2348-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/2348-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x000e000000016ccb-14.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/6000-19-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/6000-27-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 6000 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 2026-08-21_496661b8b76dfbdbde5216a598e278c0_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 2348 wrote to memory of 6000 2348 2026-08-21_496661b8b76dfbdbde5216a598e278c0_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_496661b8b76dfbdbde5216a598e278c0_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_496661b8b76dfbdbde5216a598e278c0_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2348 -
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:6000
-
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 bed35b207fa85dfcaef9c6d4e0ee968000d397c782f7811bbad37358647890b1
- MD5 8dbb2d8d7bd3944c7a31c28cb5e5f891
- SHA1 5b444addeda470adbaac41f2b4bd7d16a78cb30e
- SHA512 5a42c3dfc26344a9a0a1a6f0d5863c92dc6814f9557f2812337b3f7d9df627a501907d36abd7cb1887ea2c30d21307310e2fc55058ebffdcb231c5dd9449b26b
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/6EZ:lj+VGMOtEvwDpjubwQEI8UDVz
- TLSH T1FB83BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH