Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
27/07/2026, 00:46
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-27_8a93903d9aa5fbf02c791bf9b6bd7ce1_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-27_8a93903d9aa5fbf02c791bf9b6bd7ce1_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-07-27_8a93903d9aa5fbf02c791bf9b6bd7ce1_cryptolocker_elex.exe
- Size 45KB
- Sample260727-a4p8latwcv
- SHA256 c73f1c8768aed3aa6bceb6592827f85c8fd8a9774553259fee59cbf193c69d7e
- MD5 8a93903d9aa5fbf02c791bf9b6bd7ce1
- SHA1 bf529c43258c72a013223592b0b0a954fd9ad27e
- SHA512 6c03b8c453ca77f12deb793e9ca9d2899b54a0e7e2b0ed15b04480448abda108db13feda5a7b392f967f7efab76a6e0b363ec455322dcae33b51a4c4dbbdeee2
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTy:bgGYcA/53GAGgIvF/
- TLSH T14D2355387FE62972D37BDFB586F691C6B975B8223D16980D40CA43444833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3852-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000019caa-13.dat CryptoLocker_rule2 behavioral2/memory/2676-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2676-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2676 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 2026-07-27_8a93903d9aa5fbf02c791bf9b6bd7ce1_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 3852 wrote to memory of 2676 3852 2026-07-27_8a93903d9aa5fbf02c791bf9b6bd7ce1_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-27_8a93903d9aa5fbf02c791bf9b6bd7ce1_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-27_8a93903d9aa5fbf02c791bf9b6bd7ce1_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3852 -
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:2676
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 45KB
- SHA256 b01162c0e4c9580a78e10254767a3c4d958cb806910f1cc8263c74735c6f4158
- MD5 5f5ab6d7c1cd609d9150c955fd71c419
- SHA1 5e1450f4547f297af0317db71731fbcd84fb9ff6
- SHA512 13440aa79d8f23ea46e3013127a6a491744a2c2c0e576043dc7a21fc4399de22ee979f6cd145119bdbd51deff622017efe81016f84faeace328504190c30b7cf
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTq:bgGYcA/53GAGgIvFP
- TLSH T1D42355387FE62972E37BDF7586F691C6B975B8223D16980D40CA43444833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH