Analysis
- max time kernel
148s - max time network
146s - 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, 03:48
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-01_f0d444d691cf61b763950c98a54c5bcc_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-01_f0d444d691cf61b763950c98a54c5bcc_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-01_f0d444d691cf61b763950c98a54c5bcc_cryptolocker_elex.exe
- Size 50KB
- Sample260802-edagnssxev
- SHA256 fbedc6a1f2b72d6c6a9d99fdc998b09c3bbfc06d841914aa14607c1583403079
- MD5 f0d444d691cf61b763950c98a54c5bcc
- SHA1 49b80d6b03e145c7cbbbba179dccc0c605f4767f
- SHA512 56237ea2b6d3e9f939e102fe11a971c05d5e4eb264ab67e5b5cd6f1caf23ddc563a242fd61f701903ba0ee5624a03e0000f382ee52f418f461542a5a56335b6f
- SSDEEP 768:qao/2n1TCraU6GD1a4Xcn62y7Q/bqK76VIM:qF/y2lm6o2KOuM
- TLSH T1BB33DD386EE95972D3BBCA7585F2A1C6B93678123D02980E51CB53840C33F57BDA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral2/files/0x000b000000011377-13.dat CryptoLocker_rule2 behavioral2/memory/1032-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1032-22-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1032 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 2026-08-01_f0d444d691cf61b763950c98a54c5bcc_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2872 wrote to memory of 1032 2872 2026-08-01_f0d444d691cf61b763950c98a54c5bcc_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-01_f0d444d691cf61b763950c98a54c5bcc_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-01_f0d444d691cf61b763950c98a54c5bcc_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872 -
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:1032
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
- Size 51KB
- SHA256 55ef1b359276d6a3083a21d6a281343555ffe0cd0726c30fbf5c8af5432c5525
- MD5 6d1b110ffbfe339ebbbdb937af4a2c89
- SHA1 9d8f49fa9be37abae57364fc7a0ddc30e8fa22fe
- SHA512 627b40364f34fabb73ee986cc4a55546c55550cfbf4d7ac047ff3602b1888314487ee12d8602d99ca27c7e25e2732ed57d32907c735a0ce816a7102b76c5779d
- SSDEEP 768:qao/2n1TCraU6GD1a4Xcn62y7Q/bqK76VIT:qF/y2lm6o2KOuT
- TLSH T1CA33ED386EE95972D3BBCA7585F2A1C6B93678123D02980E51CB53840C33F57ADA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH