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
05/08/2026, 04:48
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-08-05_0382840344cbcaad6395830fb2509cb8_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-05_0382840344cbcaad6395830fb2509cb8_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
7 signatures
150 seconds
General
- Target 2026-08-05_0382840344cbcaad6395830fb2509cb8_cryptolocker_elex.exe
- Size 81KB
- Sample260805-ffaqwsdf78
- SHA256 e023e5e8b43d038fdb504eb6ebb660bcf4bcb5c26c8c0ce6eccb04327ca203fe
- MD5 0382840344cbcaad6395830fb2509cb8
- SHA1 a27192b34c87bdd6fdfb17fd7d21bb2d5cb2e62a
- SHA512 5090ffa6fa675997209f76d4956c168eb87df82a3a0c9159f3986256bafd0510326021dea6a92dff39d76100b440b8dbb43fcaf2ced0367634450d8569f6b677
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/6Ef:lj+VGMOtEvwDpjubwQEI8UDV1
- TLSH T15683BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/5396-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5396-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d000000016cdc-14.dat CryptoLocker_rule2 behavioral2/memory/3516-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3516-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral2/memory/5396-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/5396-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/files/0x000d000000016cdc-14.dat CryptoLocker_set1 behavioral2/memory/3516-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/3516-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral2/memory/5396-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/5396-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x000d000000016cdc-14.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/3516-19-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/3516-27-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 3516 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 misid.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-05_0382840344cbcaad6395830fb2509cb8_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5396 wrote to memory of 3516 5396 2026-08-05_0382840344cbcaad6395830fb2509cb8_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-05_0382840344cbcaad6395830fb2509cb8_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-05_0382840344cbcaad6395830fb2509cb8_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5396 -
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:3516
-
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 0612992677ee3183fa3ae00ec8852bed53a62be036a32e5ea0920520f47199b4
- MD5 231b4e22e94752e5561cb262824b7f75
- SHA1 65e8afc29826a8c3d3dcbc6b62e639334791a0dc
- SHA512 6f2918d7eff3c26141800355e39f3c0efb91186894b656e535fb9f823a4d941a2b297df9a664968da15d555b4d717fdec18de29cf54d3e6c28c11d5bec904a3c
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/6EQk:lj+VGMOtEvwDpjubwQEI8UDV2k
- TLSH T11E83BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH