Analysis
- max time kernel
150s - max time network
147s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
10/09/2026, 05:46
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-08_5103c936fb1f63302b9a1a08973b2c65_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-08_5103c936fb1f63302b9a1a08973b2c65_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-08_5103c936fb1f63302b9a1a08973b2c65_cryptolocker_elex.exe
- Size 29KB
- Sample260910-ggrapsygma
- SHA256 b72320ad767c065ae73b9457cf355ab2da96275c2d6cad611516935cc5dd273d
- MD5 5103c936fb1f63302b9a1a08973b2c65
- SHA1 527ea9a79130f8190ee875781d0034ed8086464d
- SHA512 b6b8cddba238f4b37b582840cd610061411ae62d6c246df07a96d9a3f11506b79ef3eba416d372924b31a9bca2e1fe345e3a843a057965fecdbed19b74425c9b
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDz/EFVZC8:bA74zYcgT/Ekd0ryfjLz/2VZC8
- TLSH T1D9D21A397BD73C72D1779EB555FBA082B97ABC213A24484E68CF3388CD72752B842149
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4668-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b884-13.dat CryptoLocker_rule2 behavioral2/memory/4600-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4600-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4600 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 2026-09-08_5103c936fb1f63302b9a1a08973b2c65_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 4668 wrote to memory of 4600 4668 2026-09-08_5103c936fb1f63302b9a1a08973b2c65_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-08_5103c936fb1f63302b9a1a08973b2c65_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-08_5103c936fb1f63302b9a1a08973b2c65_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4668 -
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:4600
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 29KB
- SHA256 e3005d9716ffea943f0da54f903f4b27ab587a1a363fd9fcf16026c2e55e0994
- MD5 c526f9e70201d163431b6f474574ce2b
- SHA1 8040b22059d4c8c655aac73ce7c76b77ba02ba22
- SHA512 4ba3c8b2dbc7c7733d5f81ec061e2ed625fb92918bc365f773f5455df70bd95526a1d7721a4d4625112112e76e26b13444fe9aa1063ff06a20bab7c0f28764ce
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUuDz/EFVZCf:bA74zYcgT/Ekd0ryfjLz/2VZCf
- TLSH T100D21A397BD72C72D1779EB155FBA082B97ABC613A24484E58CF3388CD72752B84214D
- MD5 SHA1 SHA512 SSDEEP TLSH