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
20/08/2026, 03:47
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_5e01d19f9273b952282cc4a5fccb00fc_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_5e01d19f9273b952282cc4a5fccb00fc_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_5e01d19f9273b952282cc4a5fccb00fc_cryptolocker_elex.exe
- Size 47KB
- Sample260820-eccweayhla
- SHA256 203dc69771331604fbdc76c5209ca1653f26920b6010b3be695ba12d3d5840bd
- MD5 5e01d19f9273b952282cc4a5fccb00fc
- SHA1 883957b9da73df9ed208dab2e90668e2c85cbb35
- SHA512 a7bd044f722d319659210ff189bd81b744c3015453ef24d5f41235965bcfeb36f0ef39bcf1882a3ee7e462694ed81efc36f2d3ba1fec703cce6e118d909f9376
- SSDEEP 768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqjrG4fCEk:bCDOw9aMDooc+vAqjDfCX
- TLSH T17F231F386BD4B672D377BA7585F241D2A8F474123B01C82D7ECE4346A822B7EBD9160D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/5268-0-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5268-3-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b00000001136a-14.dat CryptoLocker_rule2 behavioral2/memory/4464-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4464-21-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4464 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 lossy.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-20_5e01d19f9273b952282cc4a5fccb00fc_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5268 wrote to memory of 4464 5268 2026-08-20_5e01d19f9273b952282cc4a5fccb00fc_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_5e01d19f9273b952282cc4a5fccb00fc_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_5e01d19f9273b952282cc4a5fccb00fc_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5268 -
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:4464
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 47KB
- SHA256 b14bc87aabc09dda20d8f75f0778b6ec435d37c4a03cf85c8794f9beac995d74
- MD5 436ef5e32b89928e99949959dac67be1
- SHA1 50d54f27ac56bcc1199eb8eb9bd600a61b04a930
- SHA512 74b95fadb7b781ada3b3bde17b85b849eb7344be7cff7d4492b509a20d16d7d34f00dc1e37548e33baee75530de810d536ff56a554a01f8b520f4eb8e6d5fc70
- SSDEEP 768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqjrG4fCEt:bCDOw9aMDooc+vAqjDfCS
- TLSH T16C231F386BD4B672D377BA7585F241D2A8F474123B01C82D7ECE4346A822B7EBD9160D
- MD5 SHA1 SHA512 SSDEEP TLSH