Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
24/07/2026, 02:20
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-24_7f43429839fb4823ffbeed9dc89ee531_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-24_7f43429839fb4823ffbeed9dc89ee531_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-07-24_7f43429839fb4823ffbeed9dc89ee531_cryptolocker_elex.exe
- Size 1.0MB
- Sample260724-cslr5seb73
- SHA256 6a82ab4db4a44b69e01c100ab1ccd44e9906b022a6dcf0d829174903ad44e4d3
- MD5 7f43429839fb4823ffbeed9dc89ee531
- SHA1 345f3dcb2971f352f7e0e19c49315b551ff33477
- SHA512 90cd637acc0b6609174f42bd852af93472c0de001ee9cacfc3f6d12b418ae6a0ea6d3e6a007ff851fb2983d7bc7e26b1d5cdc19bfc529a93a6e9313fa9b3091e
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPq5:bGbvflT/ZFIjBzhxwOgXKarY1iBY
- TLSH T1262509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1184-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0009000000011380-13.dat CryptoLocker_rule2 behavioral2/memory/4016-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4016-20-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4016 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 2026-07-24_7f43429839fb4823ffbeed9dc89ee531_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 1184 wrote to memory of 4016 1184 2026-07-24_7f43429839fb4823ffbeed9dc89ee531_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-24_7f43429839fb4823ffbeed9dc89ee531_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-24_7f43429839fb4823ffbeed9dc89ee531_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1184 -
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:4016
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 1.0MB
- SHA256 c031e8c1c16218c94bfe8b683292240dcc188a1a44342822c82fcb34958aecc4
- MD5 b1d3467acfa12625846197bb424dbfbc
- SHA1 4bf7bd2603b2d8961abc78dc9ea30da39032dd0b
- SHA512 d15adf49a756e790f1f8f8fedf51a453ada515e460dc5f7ecb0e5c6311147581e92499c8f18ca3cbb9faad9ab41d226ae992759df782336d01b7134df6f5c0bd
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqC:bGbvflT/ZFIjBzhxwOgXKarY1iBv
- TLSH T14F2509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH