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
14/08/2026, 00:06
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-13_d893fa7c848cc28b20dcfc6663bad000_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-13_d893fa7c848cc28b20dcfc6663bad000_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-13_d893fa7c848cc28b20dcfc6663bad000_cryptolocker_elex.exe
- Size 42KB
- Sample260814-adsk2aeb33
- SHA256 fb984109b7b5e4af2486e6a7dd1f49eff749fb2837104f3ad19d47b30a0d9f3e
- MD5 d893fa7c848cc28b20dcfc6663bad000
- SHA1 3e716727c4750c546b642ffeaae75034ddbc735c
- SHA512 4cf0e4f09f8d44d160b9ff53ddbe4cc45eec88d85d9f6ca0d6e9e578b7ca3e3253f4c6d15f27037a00cc6e5f57ed5d4eb21194ab0f58974100099cc237fbc9d8
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCXy:bgGYcA/53GAGgIvFr
- TLSH T12B1373387BE62972E37BDFB586F691C67979B8223D16880D40CE53844833F65DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5836-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b00000001136a-13.dat CryptoLocker_rule2 behavioral2/memory/4088-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4088-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4088 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 hasfj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-13_d893fa7c848cc28b20dcfc6663bad000_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5836 wrote to memory of 4088 5836 2026-08-13_d893fa7c848cc28b20dcfc6663bad000_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-13_d893fa7c848cc28b20dcfc6663bad000_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-13_d893fa7c848cc28b20dcfc6663bad000_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5836 -
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:4088
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 43KB
- SHA256 1203c054b434b7b46e9d971734ca8d731e4f6320659c44980fd404f85ec90b99
- MD5 a75c1680603cd8fc876c86fdc2c497c6
- SHA1 fcbc27995cdd72b91e78a2d104d9fd9fb86d0828
- SHA512 a9fe019026a33e3b8d7a4650900ccd603e3734c4aaa3e7eff914423435fd4b41458bae41467e3d2b22173bb5b687a88086b6d348e88f753c32651c5497b19e98
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCXN:bgGYcA/53GAGgIvF4
- TLSH T1911373387BE62972E37BDFB586F691C67979B8223D16980D40CA53844833F61DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH