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, 01:05
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-16_962d20746315a4b644e97fb5a8c8d850_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-16_962d20746315a4b644e97fb5a8c8d850_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-16_962d20746315a4b644e97fb5a8c8d850_cryptolocker_elex.exe
- Size 1.0MB
- Sample260716-bfrbesds71
- SHA256 47653cfa9a530b6ec5487a98d45cae31985da2810a87631d095afd3ef76c3b7b
- MD5 962d20746315a4b644e97fb5a8c8d850
- SHA1 f989362e335308d35967e1e624bd462cf55a8c22
- SHA512 193e39e6a0b9eeb4ba840b27e97cf9dbc0345ad8808cb1892f58542d5d9cab87bc400f40eb0c09f60feffc3198cab8d5870d837a904b787e2889d25df63d5e2a
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqE:bGbvflT/ZFIjBzhxwOgXKarY1iBt
- TLSH T1F62519BE74972645FE624C307FECF660DB57287ACB6BDAF24595A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2604-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b871-13.dat CryptoLocker_rule2 behavioral2/memory/2836-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2836-20-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2836 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_962d20746315a4b644e97fb5a8c8d850_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 2604 wrote to memory of 2836 2604 2026-07-16_962d20746315a4b644e97fb5a8c8d850_cryptolocker_elex.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-16_962d20746315a4b644e97fb5a8c8d850_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-16_962d20746315a4b644e97fb5a8c8d850_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2604 -
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:2836
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 1.0MB
- SHA256 d88027f315153be73e1238b9d9aeb096b36884b14312430b99376420fc52a07d
- MD5 15e896b871945a828e8ab9d218887121
- SHA1 b78ea2be43694bd9d4e15d01b062e1cce1e250c4
- SHA512 57a5851eea11c6a9aee73584d213a97adce2d151dcb439c652fd0a03ed8c5a4e02ca76e446a8b3f984215b6bbc9fb3d518107c242c56df0790070c93b8003303
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqP:bGbvflT/ZFIjBzhxwOgXKarY1iB6
- TLSH T1A52519BE74972645FE624C307FECF660DB57287ACB6BDAF24595A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH