Analysis
- max time kernel
150s - max time network
152s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
15/04/2026, 04:38
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-04-15_981bbb459d9b7d20b656af7ff784730e_cryptolocker_elex.exe
Resource
win10v2004-20260130-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-04-15_981bbb459d9b7d20b656af7ff784730e_cryptolocker_elex.exe
Resource
win11-20260130-en
7 signatures
150 seconds
General
- Target 2026-04-15_981bbb459d9b7d20b656af7ff784730e_cryptolocker_elex.exe
- Size 81KB
- Sample260415-e9pw8sas5t
- SHA256 bb080bb5af920572be4efeebccd6a4723b4ccc8b48dc366b9fed20e60faa139f
- MD5 981bbb459d9b7d20b656af7ff784730e
- SHA1 6890b386b692ef5f015edfec5d1a4c4d0fd90056
- SHA512 e4017ea9126d133a3901ab3603db07b1f2eb98ff0475e085606af58b3e432a0f7352afde6226a5cd1ace5cb76ee7bf27749cfaa195c1cbbba27a0901516a71f2
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/N:lj+VGMOtEvwDpjubwQEI8UDVN
- TLSH T1E083BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral2/memory/1544-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1544-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000900000000d3cf-14.dat CryptoLocker_rule2 behavioral2/memory/4640-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4640-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4640-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 6 IoCs
resource yara_rule behavioral2/memory/1544-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/1544-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/files/0x000900000000d3cf-14.dat CryptoLocker_set1 behavioral2/memory/4640-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/4640-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/4640-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 6 IoCs
resource yara_rule behavioral2/memory/1544-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/1544-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x000900000000d3cf-14.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/4640-17-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4640-19-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4640-27-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 4640 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 2026-04-15_981bbb459d9b7d20b656af7ff784730e_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 1544 wrote to memory of 4640 1544 2026-04-15_981bbb459d9b7d20b656af7ff784730e_cryptolocker_elex.exe 80
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-15_981bbb459d9b7d20b656af7ff784730e_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-15_981bbb459d9b7d20b656af7ff784730e_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1544 -
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:4640
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 81KB
- SHA256 1006018026347c853ee323217cb63c62ad80b8fd6d6f5b13feba5ed04c68d222
- MD5 2574d9565f069fead878cdd280992bf7
- SHA1 2160d095d39dd47b2076a300f214dec185c9d4e1
- SHA512 2b673e6aceee7dbfd57245de2622d67ed5fb8642101e77e2ac101a1fb6b3ae7a4fdf47f5c8ab4aa2e1ab46972f033376ed42b2745caba84174c683439f5a1b0c
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/i:lj+VGMOtEvwDpjubwQEI8UDVi
- TLSH T1DE83BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH