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
10/08/2026, 01:06
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-09_bff711a66c5e4899650fe75096419c13_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-09_bff711a66c5e4899650fe75096419c13_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-09_bff711a66c5e4899650fe75096419c13_cryptolocker_elex.exe
- Size 45KB
- Sample260810-bgaeasycne
- SHA256 9a8838252dc9960f9478eb9bf4ee12f51af03f0703ea44507ed4f53c4f47a81d
- MD5 bff711a66c5e4899650fe75096419c13
- SHA1 003aafa1e5bc175efd4430d912119719898b1a52
- SHA512 3ed650c242297eed2c9ecb2fb0f61acba0cd3d45de36a232add71c8d20f4eb7f135a0e2a463ee0326dfeec509bac2082db231d18233a772d51fbb70f8d87dac4
- SSDEEP 768:bAvJCYOOvbRPDEgXRc+BA/b35vSse4gEyVGCC6:bAvJCF+RQgBa56suxVlR
- TLSH T13823D6367FD51A72D37782B105F7A1C2BE36BD223916D82D248AB34C0933F55ADA1A0D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x0008000000019cb3-13.dat CryptoLocker_rule2 behavioral2/memory/4964-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4964 demka.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 2026-08-09_bff711a66c5e4899650fe75096419c13_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language demka.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 6052 wrote to memory of 4964 6052 2026-08-09_bff711a66c5e4899650fe75096419c13_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-09_bff711a66c5e4899650fe75096419c13_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-09_bff711a66c5e4899650fe75096419c13_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6052 -
C:\Users\Admin\AppData\Local\Temp\demka.exe"C:\Users\Admin\AppData\Local\Temp\demka.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4964
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\demka.exe
- Size 45KB
- SHA256 8fdf136238f6e72babb61ee585cbd5cbdcc3ec0d12a7ac0cf94b4b9a9240727e
- MD5 578dce67a98f55a16a2d4182b67c5d23
- SHA1 c800be6817cfa25594826035bfddc89f4eabaa74
- SHA512 f521eeb04325218cc3a89b315e7b9d861ad8490c56e76cb5c06ae97c6230a6b97811e17bc4df2ca86c690aac50a9871a1f5c54d44a09293e0fcb812e5d320b23
- SSDEEP 768:bAvJCYOOvbRPDEgXRc+BA/b35vSse4gEyVGCCk:bAvJCF+RQgBa56suxVlT
- TLSH T10923E6367FD51A72D37782B105F7A1C2BE36BD223916D81D248AB34C0933F55ADA1A0D
- MD5 SHA1 SHA512 SSDEEP TLSH