Analysis
- max time kernel
149s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/10/2026, 23:41
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-10-04_e44f6d14812096f04ae8840a295f9d1a_cryptolocker_elex.exe
Resource
win10v2004-20260911-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-10-04_e44f6d14812096f04ae8840a295f9d1a_cryptolocker_elex.exe
Resource
win11ltsc2024-20260911-en
6 signatures
150 seconds
General
- Target 2026-10-04_e44f6d14812096f04ae8840a295f9d1a_cryptolocker_elex.exe
- Size 50KB
- Sample261004-3prgbsdf96
- SHA256 dfb3d79b2f356977d0f30bdeb63091fff425f5fec1fdfa4cb8d5e4c20b99adda
- MD5 e44f6d14812096f04ae8840a295f9d1a
- SHA1 651005050ced584dd7feb980b0e246dfa9ddbc6e
- SHA512 d484ab245f5746cdf35780c7d45f156e2f157cb745d4c096b656c1f2c95913436d74d5a21b8545f2a989ac883fa19bbf2e67cf0d54f49a7a1b77135bbd5e949e
- SSDEEP 768:qao/2n1TCraU6GD1a4Xcn62y7Q/bqK76sRr:qF/y2lm6o2KOi
- TLSH T1EF33FE386EE55972D3BBCAB585F2A1C6B93578123D029C0E51CB63840C33F57BDA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral2/files/0x000d000000019cb7-12.dat CryptoLocker_rule2 behavioral2/memory/4040-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4040-22-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4040 rewok.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname rewok.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain rewok.exe - 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 2026-10-04_e44f6d14812096f04ae8840a295f9d1a_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 5956 wrote to memory of 4040 5956 2026-10-04_e44f6d14812096f04ae8840a295f9d1a_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-10-04_e44f6d14812096f04ae8840a295f9d1a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-04_e44f6d14812096f04ae8840a295f9d1a_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5956 -
C:\Users\Admin\AppData\Local\Temp\rewok.exe"C:\Users\Admin\AppData\Local\Temp\rewok.exe"2⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
PID:4040
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
- Size 51KB
- SHA256 77c66b477e4f2a440e175eb007d2f11cec76409e2b90f54d270b43b0695df362
- MD5 a7ba8ff6924c064e8bc914d23cc98211
- SHA1 4654d6018c49f65939fe35fab66257a99390f71b
- SHA512 24fdf98cd54b02f5ace54b54ab8cc37c4f9e62d95e11f9b8572f5343dc9c7cf2112299f1e8774acf6ac22033a2eaa8748f9b72c233396dba998630375fcd94b6
- SSDEEP 768:qao/2n1TCraU6GD1a4Xcn62y7Q/bqK76sR+:qF/y2lm6o2KOX
- TLSH T16333FE386EE55972D3BBCAB585F2A1C6B93578123D029C0E50CB63840C33F57BDA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH