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
08/08/2026, 02:23
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-08_f6ec5fc894418a04f501d35245eff7c7_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-08_f6ec5fc894418a04f501d35245eff7c7_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-08_f6ec5fc894418a04f501d35245eff7c7_cryptolocker_elex.exe
- Size 42KB
- Sample260808-ct4pca1vbv
- SHA256 55d41d0d590599ebc69a38c4a146b6098e37c585f1407ebebd2dfbed34dbf801
- MD5 f6ec5fc894418a04f501d35245eff7c7
- SHA1 5a8f02501d8736187c7e7f8b1d430ede25ed4a02
- SHA512 9bd6a05c5676c7b6fd0bf6b2aee47549ad81e62c327f39e52ed6b17425d7e07affe26750f03e6bb6747bcafd8dc38a398647f74493b5fe123d29578fbae7ea64
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCXc:bgGYcA/53GAGgIvFJ
- TLSH T1F51374387FE62972E37BDFB586F691C67979B8223D16880D40CA53844833F65DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5020-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a00000001b315-13.dat CryptoLocker_rule2 behavioral2/memory/4748-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4748-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4748 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 2026-08-08_f6ec5fc894418a04f501d35245eff7c7_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 5020 wrote to memory of 4748 5020 2026-08-08_f6ec5fc894418a04f501d35245eff7c7_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-08_f6ec5fc894418a04f501d35245eff7c7_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-08_f6ec5fc894418a04f501d35245eff7c7_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5020 -
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:4748
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 99931f3c1aba09cd21f8b7eee05e6c5a79e9216ea05706bb31ba4316ce4325bd
- MD5 3d79f021267577b7c6d1393e15c84772
- SHA1 75e106047c9ff8a190103367bbc22c08cefe6ed4
- SHA512 999b1ee8bdb9fb7df4d9551c13fc0d8dde741d73cda3c7bd108515723fbc14b88d922276dfa655417f0a962a10a9f3c9b8c84a16a808ede9e1802155abdacb0b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCXe3:bgGYcA/53GAGgIvF/3
- TLSH T1901374387FE62972E37BDFB586F691C27979B8223D16880D40CA53844833F65DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH