Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/08/2026, 01:01
Behavioral task
behavioral1
Sample
2026-08-20_f6cd4b3618672c96aa15c048ac71bcee_coinminer_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
General
- Target 2026-08-20_f6cd4b3618672c96aa15c048ac71bcee_coinminer_cryptolocker_elex.exe
- Size 28KB
- Sample260820-bc8rascn8x
- SHA256 5120d9a173ebc7c60b9c40575cb3840901942799d6792180284b79204392c82f
- MD5 f6cd4b3618672c96aa15c048ac71bcee
- SHA1 a29290ae3f46421f64c8e64806e1a333dc23526c
- SHA512 417e32d36a1066cb99407b7a9a036ff1074ce1997a692d04989aa73bbb4a6b7368d50e106c19e1d835195b383ddd4d4a95c89eef2d4fd03f0910e4776a38e7bf
- SSDEEP 384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDp6HMmHBda2V1:bVCPwFRo6CpwXFXSqQXfjAsmHBdzn
- TLSH T1B6D208347AE96572E377CB7192F680C6B579B8623D12880D688FB3880D73F52DD9160E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1392-0-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0008000000019ce0-13.dat CryptoLocker_rule2 behavioral2/memory/1392-17-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4820-27-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 - UPX dump on OEP (original entry point) 4 IoCs
resource yara_rule behavioral2/memory/1392-0-0x0000000008000000-0x000000000800E000-memory.dmp UPX behavioral2/files/0x0008000000019ce0-13.dat UPX behavioral2/memory/1392-17-0x0000000008000000-0x000000000800E000-memory.dmp UPX behavioral2/memory/4820-27-0x0000000008000000-0x000000000800E000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4820 hasfj.exe -
resource yara_rule behavioral2/memory/1392-0-0x0000000008000000-0x000000000800E000-memory.dmp upx behavioral2/files/0x0008000000019ce0-13.dat upx behavioral2/memory/1392-17-0x0000000008000000-0x000000000800E000-memory.dmp upx behavioral2/memory/4820-27-0x0000000008000000-0x000000000800E000-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 hasfj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-20_f6cd4b3618672c96aa15c048ac71bcee_coinminer_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1392 wrote to memory of 4820 1392 2026-08-20_f6cd4b3618672c96aa15c048ac71bcee_coinminer_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_f6cd4b3618672c96aa15c048ac71bcee_coinminer_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_f6cd4b3618672c96aa15c048ac71bcee_coinminer_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1392 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4820
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 28KB
- SHA256 5d246f45e83376b29ed3d333da4b3df66ce6bce89b07eaf98c44d10fe05a368c
- MD5 3ee00a4e5b7d0fe7540a2e75f4094577
- SHA1 c0866958d7df32179ab938ba3f2a88ac90adce20
- SHA512 127d6131ab2721acc7e1546e8762bd6a36c7a84d1a55e71850ef7e0d8883c39c53e887a7df3730dd06c9cd670e76aa8029f31ea21c40028c84d7d0ae5b75e1f4
- SSDEEP 384:bVCPwFRuFn65arz1ZhdaXFXSCVQTLfjDp6HMmHBda2VY:bVCPwFRo6CpwXFXSqQXfjAsmHBdz2
- TLSH T1BCD208347AE96571E377CB7192F680C6A979B8623D12880D68CFB3880D73F52DD9160E
- MD5 SHA1 SHA512 SSDEEP TLSH