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
21/08/2026, 04:26
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-21_6b8d27b93d13cd410351d7304095fa85_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_6b8d27b93d13cd410351d7304095fa85_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-21_6b8d27b93d13cd410351d7304095fa85_cryptolocker_elex.exe
- Size 28KB
- Sample260821-e2vgrawzg1
- SHA256 d723aa3e005a534c6beaf32b06e496597dc44ce1ab1bd1de87d4bcd9033cdd83
- MD5 6b8d27b93d13cd410351d7304095fa85
- SHA1 0355c427124e5174294d1e1ef00becee1336bbe0
- SHA512 1c27bb039f3d91179eeef61a366340c76a08d8474e5e47db0c99948a2f70fa735239e7f5ed73ea5c7a7d6aa33b8ae80afe2fb9b33860fa495bdd37dfac5601a7
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDz/mR1fg:bA74zYcgT/Ekd0ryfjLz/mDg
- TLSH T1FAD23C397BE73C61D1779EB555FBA081783ABC223E34484E68CF3388C972751E84254A
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4144-8-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0007000000016cdb-13.dat CryptoLocker_rule2 behavioral2/memory/4772-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4772-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4772 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 2026-08-21_6b8d27b93d13cd410351d7304095fa85_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 4144 wrote to memory of 4772 4144 2026-08-21_6b8d27b93d13cd410351d7304095fa85_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_6b8d27b93d13cd410351d7304095fa85_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_6b8d27b93d13cd410351d7304095fa85_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4144 -
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:4772
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 29KB
- SHA256 7e3173a8912b4cc63dc2bde15fa31f3f522cc1a70b7a3bfad29d04a064b3cbea
- MD5 64c65b382c0931866b465bb4ec6a95a1
- SHA1 758310b24d9780ac3719744955fea28353fdb4c3
- SHA512 1b8915e13cc5530cb2d1fdd88ef314fe6346de41cf512f35222cdd46292b9f7e05bb8205995a3bafc6c33f91af4cfc21fb5e33e8b1013d538a29aea218307203
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDz/mR1ft:bA74zYcgT/Ekd0ryfjLz/mDt
- TLSH T1A7D22C397BE73C61D17B9EB555F7A082787A7C213E24484E68CF3388C932751E84254A
- MD5 SHA1 SHA512 SSDEEP TLSH