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
20/08/2026, 21:55
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_516d0f5937d5813e49d8085dc0607e7b_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_516d0f5937d5813e49d8085dc0607e7b_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_516d0f5937d5813e49d8085dc0607e7b_cryptolocker_elex.exe
- Size 47KB
- Sample260820-1s6djsfh93
- SHA256 d86431ddd2ef9b96a0bd3d56ce7f1efe5f7a1c5f12f673282bd386d96e490aa9
- MD5 516d0f5937d5813e49d8085dc0607e7b
- SHA1 9ab9dbf734f7184c528296594fe30644f671afea
- SHA512 be999a8afd8a2ecd18343a6854c960cf0ee578d394ac673eb7c7f9f50b6c2bef4140db95f35022f8797a43134d2dd32ae7ff4efb05d025388b078324ed7d4e55
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqX:bgGYcA/53GAGgIvF7EY
- TLSH T1572322387BE52932E37BDFB586F691C67975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4616-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c000000019cc9-13.dat CryptoLocker_rule2 behavioral2/memory/1704-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1704-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1704 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 2026-08-20_516d0f5937d5813e49d8085dc0607e7b_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 4616 wrote to memory of 1704 4616 2026-08-20_516d0f5937d5813e49d8085dc0607e7b_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_516d0f5937d5813e49d8085dc0607e7b_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_516d0f5937d5813e49d8085dc0607e7b_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4616 -
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:1704
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 48KB
- SHA256 05bebfaecb6bf57dce25f1a841cefc888231c8c9b1a03085b605a3e9f15fab40
- MD5 16c59af044b8abb403d14cbb20b23ca2
- SHA1 b0991867501a01a3427f64416ebca27009ad552d
- SHA512 d8fecafe9bc3ad138dfa896f268efe319dbe117f93bf7bddd6de4186d3b76d1a59c59487f52e54fad3dae783b356b10869c1380bd7ed7966137966e4da4d6b71
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqh:bgGYcA/53GAGgIvF7EC
- TLSH T1C32321387BE52932E37BDFB586F691C67975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH