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, 19:08
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_47d474f4636f41f2fba260e7e90f9522_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_47d474f4636f41f2fba260e7e90f9522_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_47d474f4636f41f2fba260e7e90f9522_cryptolocker_elex.exe
- Size 44KB
- Sample260820-xte17stfqa
- SHA256 8106415c4ca396cf2e3f03e66d7537470ed43bb281c102030355d7ac82be789a
- MD5 47d474f4636f41f2fba260e7e90f9522
- SHA1 a02a852737191f77f5d42c89d0ee0114a5ffe658
- SHA512 dcb24555738d55483fde346314f719a5b235317d3b1c83095bfe4b76bbb6b653bd3cb6d6a951a2e6796be6f4eb671da7e346ba0f90b39722f64524d7bed57ed3
- SSDEEP 768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4Uu6EIEIDK6:bIDOw9a0DwitDwIzDK6
- TLSH T1CE23FB3CAEE45872D3BB9AB599F751C2BD74B4123E159C0E44CB53840C22F27EDA260E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4532-9-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b85f-13.dat CryptoLocker_rule2 behavioral2/memory/704-26-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/704-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 704 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_47d474f4636f41f2fba260e7e90f9522_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 4532 wrote to memory of 704 4532 2026-08-20_47d474f4636f41f2fba260e7e90f9522_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_47d474f4636f41f2fba260e7e90f9522_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_47d474f4636f41f2fba260e7e90f9522_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4532 -
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:704
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 45KB
- SHA256 2cf542f08bafd603fd2ec1cd2813fb4cf46eca11bb9adf1f3e0f2e58a089ec1d
- MD5 961cd331de41510b0d7388c6c108d9a6
- SHA1 61d95ecafc79b178457893336ed1e6d40a86f58f
- SHA512 c7f68ca71993030eeafae71f547acb477c75c26a8f2700740530a50a28dd9d4f0057566e96f30adb036c13fa299993175643085f9a99930c83bc7a896b74d37d
- SSDEEP 768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4Uu6EIEIDKV:bIDOw9a0DwitDwIzDKV
- TLSH T1D623EB3CAEE55872D3BB9AB599F751C2BD74B4123E159C0E44CB53840822F27FDA260E
- MD5 SHA1 SHA512 SSDEEP TLSH