Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
03/08/2026, 09:10
Behavioral task
behavioral1
Sample
2026-08-03_72c85809ef7608ee55b8961c68e929f0_coinminer_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
General
- Target 2026-08-03_72c85809ef7608ee55b8961c68e929f0_coinminer_cryptolocker_elex.exe
- Size 36KB
- Sample260803-k49x4sfl21
- SHA256 eef515c9c56946ededa5465a8a5fa23add873cd321cadc9d705f7e25b3896e25
- MD5 72c85809ef7608ee55b8961c68e929f0
- SHA1 92db82707dc86674605c5b29ef3f5247b9ccc842
- SHA512 25c080bc7d1a0d1dc102bfa513cfee19a718f23264e1debc30445aacbfd2d4678d9937f693a7cd57e4a03e6e710736b5aa4ad02e4b5d6e64c4ad9362013f4f98
- SSDEEP 768:bFgm5zusFUB2preAr+Ofjg0STX73OBqgazTDOL:bFgmpiifY+YgaHKL
- TLSH T163F284386FD92A72E37BDB7595F691C6B934B4227D02980D54CE53880C33F52EDA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4060-0-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b85f-13.dat CryptoLocker_rule2 behavioral2/memory/4060-18-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/memory/6140-28-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 - UPX dump on OEP (original entry point) 4 IoCs
resource yara_rule behavioral2/memory/4060-0-0x0000000008000000-0x000000000800E000-memory.dmp UPX behavioral2/files/0x000600000001b85f-13.dat UPX behavioral2/memory/4060-18-0x0000000008000000-0x000000000800E000-memory.dmp UPX behavioral2/memory/6140-28-0x0000000008000000-0x000000000800E000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 6140 lossy.exe -
resource yara_rule behavioral2/memory/4060-0-0x0000000008000000-0x000000000800E000-memory.dmp upx behavioral2/files/0x000600000001b85f-13.dat upx behavioral2/memory/4060-18-0x0000000008000000-0x000000000800E000-memory.dmp upx behavioral2/memory/6140-28-0x0000000008000000-0x000000000800E000-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 lossy.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-03_72c85809ef7608ee55b8961c68e929f0_coinminer_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4060 wrote to memory of 6140 4060 2026-08-03_72c85809ef7608ee55b8961c68e929f0_coinminer_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-03_72c85809ef7608ee55b8961c68e929f0_coinminer_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-03_72c85809ef7608ee55b8961c68e929f0_coinminer_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4060 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:6140
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 36KB
- SHA256 7ba1627926c57025f86dc77fbeca149bf2bea59bb2ad06307e28f18797116b5f
- MD5 406803c96c598d5871faf0bcaa3fc72d
- SHA1 d5b4acafe4a32d8b17c94c8c595e5b2fbb084260
- SHA512 12c831c881ad250d1ab326079ab6389f8e66c1c0e91cc17f34b751d7a17ea4b72670f503f5b7c043417fa32b6136e4029a3a11e135e5ca8b26035122addcd7d1
- SSDEEP 768:bFgm5zusFUB2preAr+Ofjg0STX73OBqgazTDOh:bFgmpiifY+YgaHKh
- TLSH T1B7F284386FD92A72E37BDB7595F691C7B934B4227D02980D54CA53880C33F52EDA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH