Analysis
- max time kernel
150s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
01/08/2026, 12:27
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-01_f055d1e39f7ad32cbeccc1295dd82355_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-01_f055d1e39f7ad32cbeccc1295dd82355_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-01_f055d1e39f7ad32cbeccc1295dd82355_cryptolocker_elex.exe
- Size 33KB
- Sample260801-pm75eavfke
- SHA256 c271b8d1405a403322d4d4458bd0fa5a839701a1857d3517f6d6c4a209a2e5ca
- MD5 f055d1e39f7ad32cbeccc1295dd82355
- SHA1 b4340984fff2538d2382129af88bb49f31573fcd
- SHA512 dcf1a9a944164db05e018cfa90b003898a53300bdc2a6d99304a6f5b053a12851e53cfa97ffcd31d85d64324b316ce11ad127e74302ae1d0d1fac758323db7f9
- SSDEEP 384:+0V/YPvnr801TRoUGPh4TKt6ATt1DqgParI/zzoXYK7Akfle:+o/2n1TCraU6GD1aIX0h9I
- TLSH T1D2F2C5357BF95D61E3778A7015F3F181BA7E7C503D06991E668BF3880837A09A860F1A
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral2/files/0x001200000001c3e1-13.dat CryptoLocker_rule2 behavioral2/memory/1928-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1928-22-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1928 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_f055d1e39f7ad32cbeccc1295dd82355_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 916 wrote to memory of 1928 916 2026-08-01_f055d1e39f7ad32cbeccc1295dd82355_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-01_f055d1e39f7ad32cbeccc1295dd82355_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-01_f055d1e39f7ad32cbeccc1295dd82355_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:916 -
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:1928
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
- Size 33KB
- SHA256 c4be111635d01e0308c801a0cc0aaa74b0517aff6d083af8146299625971db79
- MD5 6548ea46fdf90e1c50d6e61bd35c7307
- SHA1 c1c6ef97a396116c1ae0c31f3c8ca7e9edd4df57
- SHA512 097e20ce6fb46994bf187a1a8a9472c23d2fff603d793460ca1829b5166b623ca5079c85b4ba5ded8174cffd36a1d9a806d851eb37dd60d60a9e813554ed5804
- SSDEEP 384:+0V/YPvnr801TRoUGPh4TKt6ATt1DqgParI/zzoXYK7Akflx:+o/2n1TCraU6GD1aIX0h9L
- TLSH T136F2B5357BF95D61E3778A7015F3F081BA7E7C503D06991E668BF3880837A09A860F1A
- MD5 SHA1 SHA512 SSDEEP TLSH