Analysis
- max time kernel
149s - 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
06/08/2026, 23:14
Behavioral task
behavioral1
Sample
2026-08-06_4035d490c322bef5e3522e1bcd1fae1c_coinminer_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-06_4035d490c322bef5e3522e1bcd1fae1c_coinminer_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
9 signatures
150 seconds
General
- Target 2026-08-06_4035d490c322bef5e3522e1bcd1fae1c_coinminer_cryptolocker_elex.exe
- Size 50KB
- Sample260806-28b1back3s
- SHA256 82cff5b35469455d6dfc03e391d68c3e04bf299f2a2219a764dbefd1e57da472
- MD5 4035d490c322bef5e3522e1bcd1fae1c
- SHA1 abcdb557f04c3c4b9fbfbbbbf7bf878a58d70d87
- SHA512 dd0b106889ff6f281f7b4f1f29a4350b0ea8f131fff9cbe9153e34752c41ee8b6bee4c67230d988a502823c91a6194cfe6a9688b8e9ed2cca969b602ccf5a904
- SSDEEP 768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5aFr7YOzzOQjG/1iTfoX0:qUmnpomddpMOtEvwDpjjaYaFAeG/Y8X0
- TLSH T12F3310386FD51AB2E377DAB6C6F685C2B935B8627C12990C40CA17450C33F52EDA1E1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/4136-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000f00000002445c-13.dat CryptoLocker_rule2 behavioral1/memory/4864-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4136-19-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4864-28-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/4136-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000f00000002445c-13.dat CryptoLocker_set1 behavioral1/memory/4864-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/4136-19-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/4864-28-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 - UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/4136-0-0x0000000000500000-0x000000000050F000-memory.dmp UPX behavioral1/files/0x000f00000002445c-13.dat UPX behavioral1/memory/4864-16-0x0000000000500000-0x000000000050F000-memory.dmp UPX behavioral1/memory/4136-19-0x0000000000500000-0x000000000050F000-memory.dmp UPX behavioral1/memory/4864-28-0x0000000000500000-0x000000000050F000-memory.dmp UPX - Checks computer location settings 2 TTPs 2 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 2026-08-06_4035d490c322bef5e3522e1bcd1fae1c_coinminer_cryptolocker_elex.exe Key value queried \REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\Control Panel\International\Geo\Nation asih.exe - Executes dropped EXE 1 IoCs
pid Process 4864 asih.exe -
resource yara_rule behavioral1/memory/4136-0-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/files/0x000f00000002445c-13.dat upx behavioral1/memory/4864-16-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/memory/4136-19-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/memory/4864-28-0x0000000000500000-0x000000000050F000-memory.dmp upx - 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 2026-08-06_4035d490c322bef5e3522e1bcd1fae1c_coinminer_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4136 wrote to memory of 4864 4136 2026-08-06_4035d490c322bef5e3522e1bcd1fae1c_coinminer_cryptolocker_elex.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-06_4035d490c322bef5e3522e1bcd1fae1c_coinminer_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-06_4035d490c322bef5e3522e1bcd1fae1c_coinminer_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4136 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4864
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\asih.exe
- Size 50KB
- SHA256 8fc4349a7d577cabb2b9d67822999c38f58491de85bd9f50c2edeb8cd8e5fe95
- MD5 d18774381e7656cbd0cc8871f7bee666
- SHA1 2520bea48be0a11a8ddbf18c914acc4f8e349929
- SHA512 a054b3a2ec0fe59f8cb78c0b28f29296b333594ba9166b65faa11fd972c2899d5db78144ed629992ad8ed355dc5d7aeba700590a35895e62790916b1cf6766fd
- SSDEEP 768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5aFr7YOzzOQjG/1iTfoXt:qUmnpomddpMOtEvwDpjjaYaFAeG/Y8Xt
- TLSH T13C3310386FD51AB2E377DAB6C6F685C2B935B8627C12990C40CA17450C33F52EDA1E1E
- MD5 SHA1 SHA512 SSDEEP TLSH