Analysis
- max time kernel
150s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
19/04/2026, 03:45
Behavioral task
behavioral1
Sample
2026-04-19_843f02b756aa1c5de396748716045f78_coinminer_cryptolocker_elex.exe
Resource
win10v2004-20260130-en
9 signatures
150 seconds
General
- Target 2026-04-19_843f02b756aa1c5de396748716045f78_coinminer_cryptolocker_elex.exe
- Size 43KB
- Sample260419-ea4lcab16j
- SHA256 cf147601f4462bbb59483d1cae03138b3c20c6a73182f68eeb2014f6086af494
- MD5 843f02b756aa1c5de396748716045f78
- SHA1 fcfa3a68fd0f8c893220bbec06d9193a076136ee
- SHA512 92397a5b77d048062290f1e192ec7d44d1ce131947489a9a6729f042f2ba77a7ceb9c96ca1f7f7a4aa627f91a0fd4c0864c0701bebe7ae40e455cb4fc7deddb3
- SSDEEP 768:92nmdJjj671a59ylqXtOOtEvwDpjljtDxy+0684tl3RSxDQ0y5Aa:9/dVGJanicMOtEvwDpj5Pg94XB6cRAa
- TLSH T19C1372386FD91572E37BDA75C6F682C2B936B8223C12990C50CA67450C33F56ADA1F1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/688-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000002a790-13.dat CryptoLocker_rule2 behavioral2/memory/688-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4948-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 2 IoCs
resource yara_rule behavioral2/memory/688-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/4948-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - UPX dump on OEP (original entry point) 4 IoCs
resource yara_rule behavioral2/memory/688-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral2/files/0x000700000002a790-13.dat UPX behavioral2/memory/688-16-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral2/memory/4948-27-0x0000000000500000-0x0000000000510000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4948 misid.exe -
resource yara_rule behavioral2/memory/688-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral2/files/0x000700000002a790-13.dat upx behavioral2/memory/688-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral2/memory/4948-27-0x0000000000500000-0x0000000000510000-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 2026-04-19_843f02b756aa1c5de396748716045f78_coinminer_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 688 wrote to memory of 4948 688 2026-04-19_843f02b756aa1c5de396748716045f78_coinminer_cryptolocker_elex.exe 80
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-19_843f02b756aa1c5de396748716045f78_coinminer_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-19_843f02b756aa1c5de396748716045f78_coinminer_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:688 -
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:4948
-
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 8ea659967c082228e32e8433441a56d7b13a857ac446f098a9ef1c2e8b37e2bb
- MD5 11d3c527f9d9fd752abeb6519c58ffee
- SHA1 5522283034d3baa5e7c9d689645dc59987574d88
- SHA512 d22c84466073e1463a0dfb1e1da832294026e6cdb7a7f5f3a603851be7b11b095540304e688082515768f1c814664d143da01c154129a0df7d6dddb0620f4aee
- SSDEEP 768:92nmdJjj671a59ylqXtOOtEvwDpjljtDxy+0684tl3RSxDQ0y5A1:9/dVGJanicMOtEvwDpj5Pg94XB6cRA1
- TLSH T1331372386FD91572E37BDA75C6F682C2B936B8223C12990C50CA67450C33F56ADA1F1E
- MD5 SHA1 SHA512 SSDEEP TLSH