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
04/08/2026, 18:07
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-08-04_ce71b529b3f571f8917a8ffd39694dfb_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-04_ce71b529b3f571f8917a8ffd39694dfb_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
7 signatures
150 seconds
General
- Target 2026-08-04_ce71b529b3f571f8917a8ffd39694dfb_cryptolocker_elex.exe
- Size 81KB
- Sample260804-wqqsvsbm2x
- SHA256 d338d66582d15615d9c54da39613fd5ea3538ed0ae9b0c2d1e87a9304e16557c
- MD5 ce71b529b3f571f8917a8ffd39694dfb
- SHA1 993a0cbe2bde6db241de5e9149aa1e20f0f0b399
- SHA512 749250e582c07c4d1e33a3a92a7ba9f180ba88200cdbae63ca88c518e6af76f0ab08f9f761eea0045223837cdff74ebca0e7aac10e5f68de24dc895f206dc4c9
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/6EY:lj+VGMOtEvwDpjubwQEI8UDV+
- TLSH T17983BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/1772-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1772-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001b87d-14.dat CryptoLocker_rule2 behavioral2/memory/5908-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5908-25-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral2/memory/1772-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/1772-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/files/0x000d00000001b87d-14.dat CryptoLocker_set1 behavioral2/memory/5908-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/5908-25-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral2/memory/1772-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/1772-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x000d00000001b87d-14.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/5908-19-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/5908-25-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 5908 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_ce71b529b3f571f8917a8ffd39694dfb_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 1772 wrote to memory of 5908 1772 2026-08-04_ce71b529b3f571f8917a8ffd39694dfb_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-04_ce71b529b3f571f8917a8ffd39694dfb_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-04_ce71b529b3f571f8917a8ffd39694dfb_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1772 -
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:5908
-
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 4d6938e2307fba318802276cc549f9afdbb3cabbb7c73dd6598065c0e2210cd6
- MD5 8404dd6608ba45c00539635be09c813e
- SHA1 52aafa38b2a530349085ac67794cb32b66cde995
- SHA512 f75d17f4c3a637f07923d08195f5ba1a24dd6ebf75160c8bbe9c912b2d1ba50ff784855ea53a37c28b33452c671f75b3d99122f36ab9f119579f0bbbc70850f5
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/6EL:lj+VGMOtEvwDpjubwQEI8UDVh
- TLSH T1D583BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH