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
13/08/2026, 10:31
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-13_1540c109a566ca79567f2aeb1e77cb95_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-13_1540c109a566ca79567f2aeb1e77cb95_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-13_1540c109a566ca79567f2aeb1e77cb95_cryptolocker_elex.exe
- Size 41KB
- Sample260813-mkhevsxdrb
- SHA256 e0d8e39cb847522036f466401fd13e8e7ecece4c2b6d73fb9d587924b1a687fa
- MD5 1540c109a566ca79567f2aeb1e77cb95
- SHA1 3be8c88b128f303b54dab663b228279ad580550e
- SHA512 bc353ee594d8331552412633ad50c2b566d775955394dfa9556e27054d5de1b4f689aca1d613b93e4517055c82a521091ae47b1d45c8b8bd2a44376abc886aa2
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCPD:bgGYcA/53GAGgIvFuD
- TLSH T1461376387FD62972E37BDFB586F691C67935B8223D16880D44CA53844833F62EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5204-8-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b85f-13.dat CryptoLocker_rule2 behavioral2/memory/468-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/468-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 468 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 2026-08-13_1540c109a566ca79567f2aeb1e77cb95_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 5204 wrote to memory of 468 5204 2026-08-13_1540c109a566ca79567f2aeb1e77cb95_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-13_1540c109a566ca79567f2aeb1e77cb95_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-13_1540c109a566ca79567f2aeb1e77cb95_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5204 -
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:468
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 41KB
- SHA256 a4ea1c09a72c3bfaa05d251657f937aa920aef6428a482129ea6b66de73121bd
- MD5 d1a23c13dee9ae66a7c34af6fe211914
- SHA1 5d561aa119e2d7772963a0d961e4ba9480335a69
- SHA512 32eb628d18de703a3fa2eeb9eec9419a0bf3a988371c4084ba3e3d557e6f7d39406821d472e4fa1c946639373dd042644247834f1b412b698855d6d43b3f4a3b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCPTB:bgGYcA/53GAGgIvFud
- TLSH T1651376387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH