Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
07/09/2026, 04:35
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-06_3fe1d96927de32cf345d7b59835a3355_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-06_3fe1d96927de32cf345d7b59835a3355_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-06_3fe1d96927de32cf345d7b59835a3355_cryptolocker_elex.exe
- Size 35KB
- Sample260907-e724sacn6t
- SHA256 e35437c2764aa2d1becbd60225f4d347660174e6bd40c23f56e361bd42b00eb0
- MD5 3fe1d96927de32cf345d7b59835a3355
- SHA1 498e59e7dd74eaa9501e784c7bd9352f4d7afd86
- SHA512 df6ac03c4b99b050a161e0e5ce60879782bf3fee4f72a947f25feaa05d5c26fab500409604b9281cad3863fec44a77943598d8c87749c64f5771215279ae5c49
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXuaBflN3sj:bG74zYcgT/Ekd0ryfjWlN3sj
- TLSH T140F2F631F7EA3822DE36AEF491F640F1B73F7819791478DE08ABE34D88B2611995D009
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/2096-0-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2096-3-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0008000000016cdf-14.dat CryptoLocker_rule2 behavioral2/memory/4996-19-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4996-21-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4996 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 2026-09-06_3fe1d96927de32cf345d7b59835a3355_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 2096 wrote to memory of 4996 2096 2026-09-06_3fe1d96927de32cf345d7b59835a3355_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-06_3fe1d96927de32cf345d7b59835a3355_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-06_3fe1d96927de32cf345d7b59835a3355_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096 -
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:4996
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 35KB
- SHA256 6c02ea89754cfb86eb77e3ced8de7d0bda02eeebfd98a4da1b6d6e22ab2393b3
- MD5 983271cd38a34ec90331c5d171e4c737
- SHA1 acdd41c14310f1fa42b01370b44c2752180847a9
- SHA512 4e436abcfd5419180acb707d2aed3b6ec3f7deb6a28a5286e5c5b450160d0ae881f3acdfce7d16351692b5cd2e098f9a590b65d37946fb63b7e3642c6b95334a
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXuaBflN3sf:bG74zYcgT/Ekd0ryfjWlN3sf
- TLSH T129F2E635F7EA3822DE36AEF491F640F1AB3F7819791478DE08ABE34D8872611995D009
- MD5 SHA1 SHA512 SSDEEP TLSH