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
20/08/2026, 18:47
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_d1ade253f6c0988ac1c641813a4d9acc_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_d1ade253f6c0988ac1c641813a4d9acc_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_d1ade253f6c0988ac1c641813a4d9acc_cryptolocker_elex.exe
- Size 26KB
- Sample260820-xfla3atdka
- SHA256 6a5032ca02676b0f50cd00fbd792a920dcca9ef77666d23b96607e0c4635f980
- MD5 d1ade253f6c0988ac1c641813a4d9acc
- SHA1 26f7ec9016f588bf9abb8051ab258743fe8ed2fa
- SHA512 54444c443d2eb07d39e2457ad182b36d70a889f1fa8bfed2ae061d1673e3ab1e58bc116206b7ee839378537bb5445424790f503c341cd6533531cc8d2f0231b5
- SSDEEP 384:9Dl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4KOQU:9DOw9UiaCHfjnfU
- TLSH T1D5C21A31BEEA6C22F17B7B7010B792559879BD403F38458FECCFB7980671962E82150A
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral2/memory/1856-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b714-13.dat CryptoLocker_rule2 behavioral2/memory/5376-25-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5376 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_d1ade253f6c0988ac1c641813a4d9acc_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 1856 wrote to memory of 5376 1856 2026-08-20_d1ade253f6c0988ac1c641813a4d9acc_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_d1ade253f6c0988ac1c641813a4d9acc_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_d1ade253f6c0988ac1c641813a4d9acc_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1856 -
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:5376
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 26KB
- SHA256 926045ca7fc6d7bba3386754ee32ee08724bdaf0b6556721787a7a654b867e7b
- MD5 a86e918b0cd277ac7ab0a05c40924d69
- SHA1 d31b5df14b3462482dc2fc51858e1607307453b4
- SHA512 d551b480662525b4b2263f48103b5ec16a264449396a7bfe546b268ed8f03966589cfc5400d70b915d7342eafc856737c6d945885f0e765a5a0b1e13335039fe
- SSDEEP 384:9Dl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4KOQv:9DOw9UiaCHfjnfv
- TLSH T1ECC21A35BEEA6C22F17B7B7010F792559879BD403E38458FECCFB7980671962E82150A
- MD5 SHA1 SHA512 SSDEEP TLSH