Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/08/2026, 04:04
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-01_8debb49f5f276bb2f707bc0805abe847_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-01_8debb49f5f276bb2f707bc0805abe847_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-01_8debb49f5f276bb2f707bc0805abe847_cryptolocker_elex.exe
- Size 62KB
- Sample260802-endxvaszay
- SHA256 fe8e2ac6ce422e9537d3bbf79d090908e4708351ef58f6ce82dbf8c7acd5dfa3
- MD5 8debb49f5f276bb2f707bc0805abe847
- SHA1 b4068d4340e84c78366e9eb5b8710a85bfc4c50b
- SHA512 c49c3d895c6590013ebe2303ea17d02eb1f0ead187187c2be23d49b64f885fd78d8d47dcc3a9bcbd7cfa7e49156a0fdef9c59aa41d5d3b86a27dd89adaea70db
- SSDEEP 768:b7o/2n1TCraU6GD1oVzX0WcO+wMVm+slAMvcWsUavRwz8l7lLF6dIZbCGOQ:bc/y2ikF0+B2qK8PUMbKQ
- TLSH T1C453123C7FD51A72E377C6B585F691C6FA79B82239029C0D50CB93840833F5AADA1A1D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x000600000001b867-13.dat CryptoLocker_rule2 behavioral2/memory/4364-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4364 rewok.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 2026-08-01_8debb49f5f276bb2f707bc0805abe847_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rewok.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3556 wrote to memory of 4364 3556 2026-08-01_8debb49f5f276bb2f707bc0805abe847_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-01_8debb49f5f276bb2f707bc0805abe847_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-01_8debb49f5f276bb2f707bc0805abe847_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3556 -
C:\Users\Admin\AppData\Local\Temp\rewok.exe"C:\Users\Admin\AppData\Local\Temp\rewok.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4364
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
- Size 63KB
- SHA256 ae75aae49bef0411befbbe87671ac2b3a03ba53efa26cf03f5e7f3d742cb9d7a
- MD5 51129eedabf4735200510e24cb847067
- SHA1 011d004dc554bffd39ffb61fdd3bc66ae16accaf
- SHA512 c6526e82f141779517c615608a166f2984ee403ed3b5859a5353619cf624bb84c8b617ac6bbae921cfecc4248ef354db70c93e710291c626648608e0149adc7d
- SSDEEP 768:b7o/2n1TCraU6GD1oVzX0WcO+wMVm+slAMvcWsUavRwz8l7lLF6dIZbCGOHi:bc/y2ikF0+B2qK8PUMbKHi
- TLSH T17153123C7FD51A72E377C6B585F691C6FA79B82239029C0D50CB93840833F5AADA1A1D
- MD5 SHA1 SHA512 SSDEEP TLSH