Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
16/07/2026, 02:53
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-16_5f300ced52cd9babfd6572d2abfbcda8_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-16_5f300ced52cd9babfd6572d2abfbcda8_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-16_5f300ced52cd9babfd6572d2abfbcda8_cryptolocker_elex.exe
- Size 41KB
- Sample260716-ddd97abx9m
- SHA256 fea70ae91eedbbedb5986f680cfca941c56f44dd271ac806963cc16a73e7f0b0
- MD5 5f300ced52cd9babfd6572d2abfbcda8
- SHA1 231380d9c29db5e18395b13d55431d716296b50e
- SHA512 f2e68d89fca2bc042c4bad23aecb46125b14cf03ccd4a34584968d91aa8453b5a4a3a66499c6cdcedbea3fdb0ac08c80b25f5174b4339a9c40db07c5a976a815
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCi:bgGYcA/53GAGgIvFz
- TLSH T1D21385387FE62972E37BDFB586F691C27975B8223D16880D44CA53844833F62DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5228-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0008000000019ce0-13.dat CryptoLocker_rule2 behavioral2/memory/3400-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3400-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3400 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 2026-07-16_5f300ced52cd9babfd6572d2abfbcda8_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 5228 wrote to memory of 3400 5228 2026-07-16_5f300ced52cd9babfd6572d2abfbcda8_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-16_5f300ced52cd9babfd6572d2abfbcda8_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-16_5f300ced52cd9babfd6572d2abfbcda8_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5228 -
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:3400
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 41KB
- SHA256 f2ab215e63ee91472006368e0ba4e83ebd23fb2a0926e37717dd82a4f9e2d187
- MD5 7aee6f66486bda940f462bcb8308d028
- SHA1 1f947487d083d33277058b287d41101496eedeb3
- SHA512 76421413807154e067d38ed09a4e21cbd1740d17931fb0abb5679a6588c6805493d0c5d7b077224e3b5ff6ca8b7e5ae1c34b41ea0452ff95c0b08c572f022b5f
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCl:bgGYcA/53GAGgIvFI
- TLSH T1451375387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH