Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/08/2026, 18:54
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-08-04_a732401820bc3fec53d4c40a9be85deb_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-04_a732401820bc3fec53d4c40a9be85deb_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
7 signatures
150 seconds
General
- Target 2026-08-04_a732401820bc3fec53d4c40a9be85deb_cryptolocker_elex.exe
- Size 81KB
- Sample260804-xkgtfacl5w
- SHA256 c2fe46ad76b2abfb7c03203be86937c3f82083001afdc9e538bff460c0325087
- MD5 a732401820bc3fec53d4c40a9be85deb
- SHA1 6ba9bdeaa813057203dece06137b187b9763bffa
- SHA512 311acabd44a6279c123d93c2d527374a80109994a1170c03ab9483b07cc3e19ec11ea77e834c9b9cf588e8fb39de6e3b3a1114b495837ff8a75e32a74da41a9c
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/6E7:lj+VGMOtEvwDpjubwQEI8UDVx
- TLSH T10283BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3140-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3140-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000500000000053e-14.dat CryptoLocker_rule2 behavioral2/memory/3176-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral2/memory/3140-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/3140-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/files/0x000500000000053e-14.dat CryptoLocker_set1 behavioral2/memory/3176-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 4 IoCs
resource yara_rule behavioral2/memory/3140-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/3140-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x000500000000053e-14.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/3176-26-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 3176 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 2026-08-04_a732401820bc3fec53d4c40a9be85deb_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 3140 wrote to memory of 3176 3140 2026-08-04_a732401820bc3fec53d4c40a9be85deb_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-04_a732401820bc3fec53d4c40a9be85deb_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-04_a732401820bc3fec53d4c40a9be85deb_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3140 -
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:3176
-
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 86703f4300440453fb9cddb77bb48e2079ce681ce07409719c95309a5d0d3d37
- MD5 f37a2555ce92b7b9b39e3f1e7c28cb03
- SHA1 2b6d60f6b76e37a8a52ded6c072b791428dbf125
- SHA512 ed52d982eed9245390f0e93765a24922ae44eab3d04c243718dbe1820802f053af408c28e3b93cd651e0d602f458e8e778658a746c08e8f951f708edcf317dd6
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/6EVP:lj+VGMOtEvwDpjubwQEI8UDVHP
- TLSH T17083BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH