Analysis
- max time kernel
150s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/08/2026, 12:34
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-03_2f6cad46e5b8ad1d313084dc6f2df06a_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-03_2f6cad46e5b8ad1d313084dc6f2df06a_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-03_2f6cad46e5b8ad1d313084dc6f2df06a_cryptolocker_elex.exe
- Size 46KB
- Sample260804-pryrja1anf
- SHA256 9ace788097140886d6c413fd0ecc7d8d1d18272e946295d6c156c0d0c0310ba4
- MD5 2f6cad46e5b8ad1d313084dc6f2df06a
- SHA1 4f1ad62db7bfe587d94096c0bc4226472e7b82fe
- SHA512 e8898ba1f916ac30229853032406d5f351791484b2a2e75ae39eb3ea9a91a4da8a44456e6fc95693d1b545c8b49100b3277533c2adcaad615de47c9a9f63ae19
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcX6kYl:bgGYcA/53GAGgIvFwl
- TLSH T17B2344387FE62972D37BDFB586F691C6B935B8223D16980D40CA43444833F66DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4148-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b85f-13.dat CryptoLocker_rule2 behavioral2/memory/4892-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4892-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4892 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 2026-08-03_2f6cad46e5b8ad1d313084dc6f2df06a_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 4148 wrote to memory of 4892 4148 2026-08-03_2f6cad46e5b8ad1d313084dc6f2df06a_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-03_2f6cad46e5b8ad1d313084dc6f2df06a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-03_2f6cad46e5b8ad1d313084dc6f2df06a_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4148 -
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:4892
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 d8dc6ef0599e95a84a347bf547942c2e0638eb6da6eac64758afbca03709df4c
- MD5 841770257b473d26c7cad66ccc0fb674
- SHA1 ed7fe334a125f34a06d49ac0479fe9ab38887fcc
- SHA512 422550175ca290adeaa50bf2d7e6e58e6318c5ed5e6b4bc8ddf048b905cab0d0520a6df5cd9024974f1f16dd96bd444e21707495dd765c4bc1c95bc605cf5130
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcX6kYf:bgGYcA/53GAGgIvFwf
- TLSH T1C22344387FE62972D37BDFB586F691C6B93578223D16980D40CA43444833F66DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH