Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/07/2026, 02:10
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-02_628d9a36d580bd22cb77585acc786a5c_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-02_628d9a36d580bd22cb77585acc786a5c_cryptolocker_elex.exe
Resource
win11ltsc2024-20260629-en
5 signatures
150 seconds
General
- Target 2026-07-02_628d9a36d580bd22cb77585acc786a5c_cryptolocker_elex.exe
- Size 1.0MB
- Sample260702-cl2vsahw3n
- SHA256 ba82aec9efe5d3c554fa0aca12b2958d9a7c6719ce0476bb2d76f11e2630819b
- MD5 628d9a36d580bd22cb77585acc786a5c
- SHA1 12984d058d5c934c6a94a96852e5e72aa7db573b
- SHA512 d1e6adfbd30d1186eb8c3ad5543680abcfb22472cdfee4771dd6b115213f556e188b7a3c592ab2ffa428d98d9a0f183a61677e4d5eaf8daa403eee9da5cb7c68
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqh:bGbvflT/ZFIjBzhxwOgXKarY1iBg
- TLSH T1202519BE74972645FE624C307FECF660DB57287ACB6BDAF24595A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5936-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000f00000001b308-13.dat CryptoLocker_rule2 behavioral2/memory/5992-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5992-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5992 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 2026-07-02_628d9a36d580bd22cb77585acc786a5c_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 5936 wrote to memory of 5992 5936 2026-07-02_628d9a36d580bd22cb77585acc786a5c_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-02_628d9a36d580bd22cb77585acc786a5c_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-02_628d9a36d580bd22cb77585acc786a5c_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5936 -
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:5992
-
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 e1d2ec1d2cbf0e65c7562d7dcb4c8125ea2366c19a2f1412ef4c9847b08b6abe
- MD5 0e779f6dbfe5645cfc1f120639317477
- SHA1 0c46d558e16d04a41a91426c69e10b87c9324306
- SHA512 f8c2df685897ea32b376b193f821e67559a2e9bc3062eec3cb765bfa00d9570b2b2490772adf4a58bc06e9e0ed2f69c16544b529238a0917747d538a32dfb6f9
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPq+:bGbvflT/ZFIjBzhxwOgXKarY1iBr
- TLSH T1392519BE74972645FE624C307FECF660DB57287ACB6BDAF24595A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH