Analysis
- max time kernel
150s - max time network
151s - 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, 23:23
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_c5d3561b795d252ef0e0517ffe94d544_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_c5d3561b795d252ef0e0517ffe94d544_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_c5d3561b795d252ef0e0517ffe94d544_cryptolocker_elex.exe
- Size 39KB
- Sample260820-3ddq4ack3v
- SHA256 02f281a5c52b3a0deb218c3dd6a8ce2072c00e2898726931b958b8ec7f37b297
- MD5 c5d3561b795d252ef0e0517ffe94d544
- SHA1 c3a716fbf070038e970d0a56294aebd1d13282a3
- SHA512 5c9633d6df9467b45c3215b0e540799496c00c30ab638c13d1d519f31efbc81ed6014750d348f66a40133355877fbba1a0dac983ff81c2b69a93983b78725106
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNblX7QCOBqYvazTvbqv:bdDOw9Uiaw8fjR0STX73OBqgazTDw
- TLSH T18A0352387EE52972E37BEA7585F391C6B974B4223D15990E84CF57440833F62ECA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x0008000000016ca8-13.dat CryptoLocker_rule2 behavioral2/memory/5016-17-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5980 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 2026-08-20_c5d3561b795d252ef0e0517ffe94d544_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 5016 wrote to memory of 5980 5016 2026-08-20_c5d3561b795d252ef0e0517ffe94d544_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_c5d3561b795d252ef0e0517ffe94d544_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_c5d3561b795d252ef0e0517ffe94d544_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5016 -
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:5980
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 39KB
- SHA256 d66c4c5421d15dad4df1eef1b10592d1ead5f2a68335f0b0dd4a649fb78ee6b9
- MD5 1a81d195f9cdcf9eec3e3bec868ef955
- SHA1 8f79947c0e3ac166cca18fa12a820235f61fb5fb
- SHA512 5c3138979cc6f017f77caaf07b01042eb9d39cdf9aa59ee7255c7b0714710a879122683bd10aec44d879c288fbbcaf4f3f6ae15047e709f1339847d61b421d74
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNblX7QCOBqYvazTvbqQ:bdDOw9Uiaw8fjR0STX73OBqgazTDX
- TLSH T1530352387EE52972E37BEA7585F391C6B974B4223D15990E84CF57440833F62ECA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH