Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
10/08/2026, 06:41
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-10_282699f5b3e21e53df3a810236b995a6_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-10_282699f5b3e21e53df3a810236b995a6_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-10_282699f5b3e21e53df3a810236b995a6_cryptolocker_elex.exe
- Size 46KB
- Sample260810-hf5mdacq21
- SHA256 6b272f8b0cb3666695c70b7557f6116fc5da775362c3c7571bd78b61f9bb1421
- MD5 282699f5b3e21e53df3a810236b995a6
- SHA1 93d29692d9a52c4e0f225ea03eefaef0e9d0d7c6
- SHA512 0f2ef239a6c7feb78679521325b7dd1cf5ea6f9df814204d7b94c7f613a60a92eb98635868eb691a31c94d00d32b67642ceb0b4954d9c5f2fa70bb50cc7ca633
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhS:bgGYcA/53GAGgIvF7Eg
- TLSH T1EF2321387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444833F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3704-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0008000000019ce0-13.dat CryptoLocker_rule2 behavioral2/memory/5064-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5064-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5064 hasfj.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 2026-08-10_282699f5b3e21e53df3a810236b995a6_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3704 wrote to memory of 5064 3704 2026-08-10_282699f5b3e21e53df3a810236b995a6_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-10_282699f5b3e21e53df3a810236b995a6_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-10_282699f5b3e21e53df3a810236b995a6_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3704 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5064
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 0c1e82c5fd327714a00aeba65bf6b055c62424c879250b1d00a1e18703a4bc6a
- MD5 cc6c064b1855916672875f59961878db
- SHA1 9884d1ba16a288735af5a3ba621e9edc2742a458
- SHA512 ab096c36ed6e1101d6579d6643bcebffcc53230627a642098f2a124dcf9f9b7d83ed006b90bfe9383612509ccbeb1f47712ff9de071cf842eac2a46c9c082eff
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhA:bgGYcA/53GAGgIvF7EC
- TLSH T1332321387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444833F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH