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
24/08/2026, 20:50
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-24_ee9cd8671b0eaa6f58a9f1088e3e0125_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-24_ee9cd8671b0eaa6f58a9f1088e3e0125_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-24_ee9cd8671b0eaa6f58a9f1088e3e0125_cryptolocker_elex.exe
- Size 30KB
- Sample260824-zmkdfstelf
- SHA256 bc6f66708aa432d4919ec99c6dceab3559f89ccff7910035c22c62869797763f
- MD5 ee9cd8671b0eaa6f58a9f1088e3e0125
- SHA1 2eb1eaea3806ac78628ed3d5e28ad11fb7320de4
- SHA512 dd4f78f52ae65cbccfc3054770bf0046d7ddedc8cf6f9237b772110b3452f623ed40b3963bad08aa2b482a2655a4794fd891df0e29919bba614e091a4c939393
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/HNblX5LnleYoH/YaX:bIDOw9UiaCHfjnE0STX5zUYqX
- TLSH T193E2B639AEE56872E2B7AB7194F391C6FC75B9123A24494E98CF73880932E17FC5110D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1052-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000011390-13.dat CryptoLocker_rule2 behavioral2/memory/3716-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3716-26-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3716 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 2026-08-24_ee9cd8671b0eaa6f58a9f1088e3e0125_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 1052 wrote to memory of 3716 1052 2026-08-24_ee9cd8671b0eaa6f58a9f1088e3e0125_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-24_ee9cd8671b0eaa6f58a9f1088e3e0125_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-24_ee9cd8671b0eaa6f58a9f1088e3e0125_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1052 -
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:3716
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 31KB
- SHA256 e4ff0b2f2180187294dbdc06084c35afc24a4e683f9b74147ba0d83de9a89a72
- MD5 3c091baea5470f68ec375ae0bd55dd7b
- SHA1 9cd23d8280065306e362340921d38464c86271a8
- SHA512 b3491cd753fdd6b12add01f4e8668338674f100a6377263e59dceb6e9669343fb1bd2e31b120916fffc345e1d92da0114c4706000c4dedd8c6989b1ba8d90bba
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/HNblX5LnleYoH/Ya3:bIDOw9UiaCHfjnE0STX5zUYq3
- TLSH T13AE2B639AEE56872E2B7AB7195F391C6FC74B9123A24494E98CF73880932E17FC5110D
- MD5 SHA1 SHA512 SSDEEP TLSH