Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
02/08/2026, 07:49
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-08-02_e73045df3e097fc4c67102a4d47db9fa_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-02_e73045df3e097fc4c67102a4d47db9fa_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
7 signatures
150 seconds
General
- Target 2026-08-02_e73045df3e097fc4c67102a4d47db9fa_cryptolocker_elex.exe
- Size 81KB
- Sample260802-jnp3bseq81
- SHA256 887a8dca2d98b042870d8a655cac28bbfaecfe2e8e3113c071ab62ad288df08a
- MD5 e73045df3e097fc4c67102a4d47db9fa
- SHA1 7f0a692efe5e9016e8592aefe6d3f5ecdea3cd57
- SHA512 005e9d0e089e55ebb15db3ee4172a3439c2e95d20335489373854fe5cba1c9529796f35c2f80ed9b1d2406a272e15d0501d72ee803a21899be579390b2b5d5de
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/h:lj+VGMOtEvwDpjubwQEI8UDVh
- TLSH T18183BD386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1540-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1540-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x00070000000238c4-14.dat CryptoLocker_rule2 behavioral1/memory/748-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/748-20-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/1540-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/1540-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x00070000000238c4-14.dat CryptoLocker_set1 behavioral1/memory/748-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/748-20-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/1540-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1540-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x00070000000238c4-14.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/748-18-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/748-20-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\Control Panel\International\Geo\Nation 2026-08-02_e73045df3e097fc4c67102a4d47db9fa_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 748 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 2026-08-02_e73045df3e097fc4c67102a4d47db9fa_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 1540 wrote to memory of 748 1540 2026-08-02_e73045df3e097fc4c67102a4d47db9fa_cryptolocker_elex.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-02_e73045df3e097fc4c67102a4d47db9fa_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-02_e73045df3e097fc4c67102a4d47db9fa_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1540 -
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:748
-
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 6d92519e346b413cf9dd15319a564b0497862342e4ee86f30b5c9712463132a7
- MD5 175c7321edc879e5fcf06fbaa0c88ae8
- SHA1 eed2b039c3a5dbf077f77524ce78641410b885ab
- SHA512 4a4454b604588e3ccce5ffa469387439855693758491cf45406d571ac5f954c9136a5db9fd8b99237229d6fc58b4c8df7106d6f4fb28b2ad0a9f34f338282645
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/r:lj+VGMOtEvwDpjubwQEI8UDVr
- TLSH T18583BD386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH