Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
25/08/2026, 09:00
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-24_83142d9917a0a5e6eff34b592ca5089d_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-24_83142d9917a0a5e6eff34b592ca5089d_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-24_83142d9917a0a5e6eff34b592ca5089d_cryptolocker_elex.exe
- Size 34KB
- Sample260825-kyd89awscy
- SHA256 88771894d06e1f507c3dfffc63bf733d9cc81b6c37fe78f6f8d31efb59072974
- MD5 83142d9917a0a5e6eff34b592ca5089d
- SHA1 ccb31fae582ac0bc60b84d54586e7a540780688c
- SHA512 a1c181d7e8a109c4239140a770f60aaff408baef8c9637519dde14c82115bcf26997eda7e3d939df26c84c8409368e9071770e1bce1c79acb8e7425379f9ca60
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgI2wegz3GvUqmul3+p4QP:bA74zYcgT/Ekd0ryfjPI2bgY+SQP
- TLSH T1D3F2A5386FD72972D37B9EB595F791C2B835B8223A158C4E58CF23848C33B52AC4195E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4084-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000f000000016cdf-13.dat CryptoLocker_rule2 behavioral2/memory/292-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/292-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 292 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 2026-08-24_83142d9917a0a5e6eff34b592ca5089d_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 4084 wrote to memory of 292 4084 2026-08-24_83142d9917a0a5e6eff34b592ca5089d_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-24_83142d9917a0a5e6eff34b592ca5089d_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-24_83142d9917a0a5e6eff34b592ca5089d_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4084 -
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:292
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 34KB
- SHA256 ef4c7889b8fcf775529db3be8f647140f2f1b3bf52eb4cf5d8240857b8117504
- MD5 222631974c972ff47d6d55dcf84ab09b
- SHA1 ae1e4f86bdfc2d619652c7ed159ea0fcbc19d529
- SHA512 fa65d4d1491b48658cf750e5263246ef508e371ee1c5eb93ae6f75f90720fb8ee64f0b865fb2ecfc54761f916d649e1638a5b336e100f73bba1435c1796e0b70
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgI2wegz3GvUqmul3+p4Qtv:bA74zYcgT/Ekd0ryfjPI2bgY+SQtv
- TLSH T106F2A5386FD62972D37BDEB595F791C2B835B8223A158C4E54CF23848C33B52AC4195E
- MD5 SHA1 SHA512 SSDEEP TLSH