Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/08/2026, 09:50
Behavioral task
behavioral1
Sample
2026-08-03_c5c0cfdcaa8ed12cda0a3a6b44da5536_coinminer_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
General
- Target 2026-08-03_c5c0cfdcaa8ed12cda0a3a6b44da5536_coinminer_cryptolocker_elex.exe
- Size 36KB
- Sample260804-ltx18sha88
- SHA256 75cdde25abe5823bbe57e8f6ce8e7f98023b7255dc774d7f867ce33dd18f9b0f
- MD5 c5c0cfdcaa8ed12cda0a3a6b44da5536
- SHA1 f1b2d93a9782770887f8ac72e361eb8631b48a24
- SHA512 f5f3c6de07237bf107de034feee41777d23b6252e446515ff3a53fa4a2278021d467f3a19fa092cb93c82ff9b8e5beaccab82d0cbddaf9e493913fb23e02076f
- SSDEEP 768:bFgm5zusFUB2preAr+Ofjg0STX73OBqgazTDOE:bFgmpiifY+YgaHKE
- TLSH T10CF284386FD92A72E37BDB7595F691C6B934B4227D02980D54CE53880C33F52EDA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3588-0-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b867-13.dat CryptoLocker_rule2 behavioral2/memory/3588-19-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3292-28-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 - UPX dump on OEP (original entry point) 4 IoCs
resource yara_rule behavioral2/memory/3588-0-0x0000000008000000-0x000000000800E000-memory.dmp UPX behavioral2/files/0x000600000001b867-13.dat UPX behavioral2/memory/3588-19-0x0000000008000000-0x000000000800E000-memory.dmp UPX behavioral2/memory/3292-28-0x0000000008000000-0x000000000800E000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 3292 lossy.exe -
resource yara_rule behavioral2/memory/3588-0-0x0000000008000000-0x000000000800E000-memory.dmp upx behavioral2/files/0x000600000001b867-13.dat upx behavioral2/memory/3588-19-0x0000000008000000-0x000000000800E000-memory.dmp upx behavioral2/memory/3292-28-0x0000000008000000-0x000000000800E000-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 2026-08-03_c5c0cfdcaa8ed12cda0a3a6b44da5536_coinminer_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language lossy.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3588 wrote to memory of 3292 3588 2026-08-03_c5c0cfdcaa8ed12cda0a3a6b44da5536_coinminer_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-03_c5c0cfdcaa8ed12cda0a3a6b44da5536_coinminer_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-03_c5c0cfdcaa8ed12cda0a3a6b44da5536_coinminer_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3588 -
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:3292
-
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 dae4b18298ee414bf1d30e3c811ff0a43e1fd0eea2a6405f2b37c5c1b77709a0
- MD5 0aded1822228335be86450b216b3d0d1
- SHA1 18e58d4e9083b1d581d9a197c5a165e0d5db6274
- SHA512 e4dbaf875561ec96b4ac7052d5193bdcca3116b87763f7fe164ac19485518763f264df762fb98d118e1595b0c885d17be42053c8359c731b17b320d2a3c5ee9a
- SSDEEP 768:bFgm5zusFUB2preAr+Ofjg0STX73OBqgazTDOe:bFgmpiifY+YgaHKe
- TLSH T1C4F284386FD92A72E37BDB7595F691C6B934B4227D02980D54CA53880C33F52EDA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH