Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
01/07/2026, 02:40
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-06-30_d1a937248d59fed7f1ca84f790d49022_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-06-30_d1a937248d59fed7f1ca84f790d49022_cryptolocker_elex.exe
Resource
win11ltsc2024-20260629-en
7 signatures
150 seconds
General
- Target 2026-06-30_d1a937248d59fed7f1ca84f790d49022_cryptolocker_elex.exe
- Size 43KB
- Sample260701-c54hqaex4y
- SHA256 1876874d9a45caac129e9ee8f2a6ffa8f2e1226ce37d55a41e37fce237c97045
- MD5 d1a937248d59fed7f1ca84f790d49022
- SHA1 f08e59c7adaf7bb44b9b2c38c9e7b7c8ca47852d
- SHA512 9bc9f12a6b9ae8a31beec1d4824d5c1f8603d70f3279fc7da3425c453b103d14c8a558b8dd825193e90fcbe05ae049752eb7c50bb95dddaf010a2b331527403b
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWpN+Mw5XBN4d0v:lj+VGMOtEvwDpjoNMpBad0v
- TLSH T13813C636AFC51532E3779B7595FB82C2BA66BC563C31950E918A33054C33B02EDA1E1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/3548-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3548-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x002b000000011556-14.dat CryptoLocker_rule2 behavioral2/memory/1900-21-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1900-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral2/memory/3548-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/3548-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/files/0x002b000000011556-14.dat CryptoLocker_set1 behavioral2/memory/1900-21-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/1900-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral2/memory/3548-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/3548-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x002b000000011556-14.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/1900-21-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/1900-19-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 1900 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 2026-06-30_d1a937248d59fed7f1ca84f790d49022_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3548 wrote to memory of 1900 3548 2026-06-30_d1a937248d59fed7f1ca84f790d49022_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-06-30_d1a937248d59fed7f1ca84f790d49022_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-06-30_d1a937248d59fed7f1ca84f790d49022_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3548 -
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:1900
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 43KB
- SHA256 6c781da914d9d61cac0d426843925e1821b17cc42455620a01b80628bb43fba7
- MD5 4efa1cc5f5fc1b93df7bbbdd4d239dcd
- SHA1 17ac29e97ba5f55ab434142353eb71f5053b93cd
- SHA512 000aff672e497c259436e2e8ede5c95f48d4f172e872524bc778032d6c5b8f0aba7846ec874fd5c30135eb578d45520e2a01ba429179ebab145c54138dee3874
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWpN+Mw5XBN4d01:lj+VGMOtEvwDpjoNMpBad01
- TLSH T17313B536AFC51532E3779B7595FB82C2BA66BC563C31950E918A33054C33B02EDA1E1E
- MD5 SHA1 SHA512 SSDEEP TLSH