Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
28/06/2026, 23:34
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-06-28_2e79f0a8de4a864304ae40d831ac4367_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-06-28_2e79f0a8de4a864304ae40d831ac4367_cryptolocker_elex.exe
Resource
win11ltsc2024-20260618-en
20 signatures
150 seconds
General
- Target 2026-06-28_2e79f0a8de4a864304ae40d831ac4367_cryptolocker_elex.exe
- Size 42KB
- Sample260628-3khcvsht5l
- SHA256 15c9fde53a117ff13396c4e3d3272743363d119323aa2cbe815c4825f61b7129
- MD5 2e79f0a8de4a864304ae40d831ac4367
- SHA1 1e8c46103effd0c9b27bdd476af88d105bbfd12b
- SHA512 f6eec78ddf5fe07906b70cd5daf0e01e558c46f05ecacb1767833def3d29c3aa659ced59fee8940ab4c81cd1ee5d8f26fd8dd99b5f78d3467301300661eb8328
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWpN+Mw5XBN4G0:lj+VGMOtEvwDpjoNMpBaG0
- TLSH T19F13D7366FC51932E2779B7195FB82C2B666BC563C31990E918A33054D33B02EDA1E1F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1056-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1056-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000600000001e6ce-14.dat CryptoLocker_rule2 behavioral1/memory/4284-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4284-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/1056-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/1056-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000600000001e6ce-14.dat CryptoLocker_set1 behavioral1/memory/4284-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/4284-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/1056-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1056-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000600000001e6ce-14.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/4284-18-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/4284-26-0x0000000000500000-0x0000000000510000-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-1-5-21-2370214745-1838013427-2987045292-1000\Control Panel\International\Geo\Nation 2026-06-28_2e79f0a8de4a864304ae40d831ac4367_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 4284 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 2026-06-28_2e79f0a8de4a864304ae40d831ac4367_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 1056 wrote to memory of 4284 1056 2026-06-28_2e79f0a8de4a864304ae40d831ac4367_cryptolocker_elex.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-06-28_2e79f0a8de4a864304ae40d831ac4367_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-06-28_2e79f0a8de4a864304ae40d831ac4367_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1056 -
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:4284
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 42KB
- SHA256 4dc2dfcea6d373fe9d464d835662009a53b0bb2795d6e727c039c739396db198
- MD5 21d50726431edd7050662a42a8ffe22b
- SHA1 7c3fb9570bdbef869bac54180810efd7a3647f5c
- SHA512 5fe20b95c28fb8f1f9b889decf05e53df928fa719fe32793991df28ac43bdc96685aa826f2fbe08fb2ffdf45db1e0039b44400b09a95cee1aa520d2dac527d87
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWpN+Mw5XBN4GGO:lj+VGMOtEvwDpjoNMpBaGGO
- TLSH T17913C7366FC51932E2779B7195FB82C2B666BC563D31990E918A33054C33B02EDA1E1F
- MD5 SHA1 SHA512 SSDEEP TLSH