Analysis
- max time kernel
148s - 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
05/08/2026, 09:10
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-05_5711d05c962f8e8b38f89c0c3728dbab_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-05_5711d05c962f8e8b38f89c0c3728dbab_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-05_5711d05c962f8e8b38f89c0c3728dbab_cryptolocker_elex.exe
- Size 41KB
- Sample260805-k5bfyagg84
- SHA256 f5e5263eed27c5d9020b41045d84fa9bc7cf05b2abd1fa53c7fa0f481fc63029
- MD5 5711d05c962f8e8b38f89c0c3728dbab
- SHA1 30999b35b4aab4698c249b82a9664f148018c6d7
- SHA512 3d890531f4aafe8071182522ce88e03bd5f3e913ff4defe7ae120ed3d754ca7a382329a029f891264b79911cbb908a4fc2fa15cb32911a5e0cce47bd14ad97ed
- SSDEEP 384:bgM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzorw7SigsXmyuvLVHN4X/xtBD:blo/2n1TCraU6GD1a4XcsSKNuxNwKpLQ
- TLSH T14B134138BFE95972D377C67585F2A1C2B9367C123D02980E55CBA3880C33B5BAD90A1D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral2/files/0x0013000000016db3-13.dat CryptoLocker_rule2 behavioral2/memory/4688-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4688-22-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4688 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 rewok.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-05_5711d05c962f8e8b38f89c0c3728dbab_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3644 wrote to memory of 4688 3644 2026-08-05_5711d05c962f8e8b38f89c0c3728dbab_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-05_5711d05c962f8e8b38f89c0c3728dbab_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-05_5711d05c962f8e8b38f89c0c3728dbab_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3644 -
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:4688
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
- Size 41KB
- SHA256 01819f3c5e5f7f2a46c73294dd9b0c9ef784f49bf2b683f76da2be70480b2a28
- MD5 39afc2d3fdc24ddee14e97bb304598e5
- SHA1 4e8a8076ce88b32bee3619114a1fc95edacdf151
- SHA512 8c2678034e9aa15a984ce84920c6da06ba4b7d79d471b0e59c955a6d3ea57ee4cd7d095024c84fd44886f593bca5b7e536fed3c4d7f8b4094221aa112f5e39dc
- SSDEEP 384:bgM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzorw7SigsXmyuvLVHN4X/xtBd:blo/2n1TCraU6GD1a4XcsSKNuxNwKpLy
- TLSH T19D134138BFE95972D377C67585F2A1C2B9367C123D06980E55CBA3880C33B5BAD90A1D
- MD5 SHA1 SHA512 SSDEEP TLSH