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, 23:23
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_c4d762d93700bd8b32667cb9fd9b043f_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_c4d762d93700bd8b32667cb9fd9b043f_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_c4d762d93700bd8b32667cb9fd9b043f_cryptolocker_elex.exe
- Size 29KB
- Sample260820-3dkveaxcnd
- SHA256 304c2f844f5c0dc731c35dd85acdde2df38110055b75e55676d8580f98d455bf
- MD5 c4d762d93700bd8b32667cb9fd9b043f
- SHA1 9e1046884467d05e7fac3865b82f148fc6c21db1
- SHA512 6828e74929214183ad5ab58ae8e0bbc94b9ad9c99c272d540c5894049195199f385f442c7f1f0fff420ff8807b851c2991cdffc5aea3ac79faa4f310376d7eb1
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/X2kH9rtmdbB:bIDOw9UiaCHfjnE0S2kH9rkdV
- TLSH T13FD2E839BEE56832E1B7BB7454F39182AC747D523A24494E98CF73880931F66FC6220D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4936-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b86d-13.dat CryptoLocker_rule2 behavioral2/memory/3676-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3676-26-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3676 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_c4d762d93700bd8b32667cb9fd9b043f_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 4936 wrote to memory of 3676 4936 2026-08-20_c4d762d93700bd8b32667cb9fd9b043f_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_c4d762d93700bd8b32667cb9fd9b043f_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_c4d762d93700bd8b32667cb9fd9b043f_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4936 -
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:3676
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 29KB
- SHA256 583f103efff501fd3cc4e64b35dfadaf160b089e8b8b45ba009a831b85d8eba7
- MD5 46004aa9d315b2a7bf7d996f49984aa5
- SHA1 e314783c1629580a64af0c352230b217a9da1f06
- SHA512 0faffeccc649f4a2b0b79efdbc07c8573525b83ad125e6d51a7adedecebbc64f7e376372e4a4e66c6da6144bbf7ce668e9b87760a76cd37bb37dec895dc1e326
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/X2kH9rtmdbG:bIDOw9UiaCHfjnE0S2kH9rkdK
- TLSH T108D2E739BEE56832E1B7BB7454F39186AC747D523A24494E98CF73880931F66FC6220D
- MD5 SHA1 SHA512 SSDEEP TLSH