Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/09/2026, 15:11
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-04_2ed66a1cfd0de7b2ec0dedc2c3a84a00_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-04_2ed66a1cfd0de7b2ec0dedc2c3a84a00_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-04_2ed66a1cfd0de7b2ec0dedc2c3a84a00_cryptolocker_elex.exe
- Size 26KB
- Sample260905-sky1hatybx
- SHA256 c47b73fda82ef68bce3dbb1deed0d7afd77273a9de14e365deef92e501e68de7
- MD5 2ed66a1cfd0de7b2ec0dedc2c3a84a00
- SHA1 58ef868a98ab9ae4caf2ad61f3258333b462e1bb
- SHA512 bc504c313995faaa3afb239331a4e61d970963ff7dc2f82778edbea5ff4950274886fd8117b0b5449fda4092e578fc2e2e39e135bcde2ae2d70d7161705705a2
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/HNby5:bIDOw9UiaCHfjnE0S6
- TLSH T14CC21935BEAA6C22E0777B7014F79246A8797D413B38098FECCF77991A71A52F81210D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3524-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a00000001136f-11.dat CryptoLocker_rule2 behavioral2/memory/4088-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4088-26-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4088 lossy.exe - 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 2026-09-04_2ed66a1cfd0de7b2ec0dedc2c3a84a00_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 3524 wrote to memory of 4088 3524 2026-09-04_2ed66a1cfd0de7b2ec0dedc2c3a84a00_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-04_2ed66a1cfd0de7b2ec0dedc2c3a84a00_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-04_2ed66a1cfd0de7b2ec0dedc2c3a84a00_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3524 -
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:4088
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 27KB
- SHA256 1181dfb3c8ca4a1eed6bac7cafb6e086d796902d31b26c1931802ee1c871702e
- MD5 beccf517929f0f5ae1a544693c372535
- SHA1 4685e0b421fb772046170e96766dbabfce3ccd42
- SHA512 2f5ffa8be03e4dbe12e4c33f34d310c9193926c616f036f4c88d9d8b33a8c4ffbfc6fb453bd7353249dddeca1f9c0b5cc9a04d50ba89b7e3754d9fc567760154
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/HNby0:bIDOw9UiaCHfjnE0Sr
- TLSH T186C21935BEAA6C22E0777B7014F79246A8797D413B38098FECCF77991A71E52F812109
- MD5 SHA1 SHA512 SSDEEP TLSH