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
20/08/2026, 06:51
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_a66f1afdfea8eedb3f17743ccd2ddea0_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_a66f1afdfea8eedb3f17743ccd2ddea0_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_a66f1afdfea8eedb3f17743ccd2ddea0_cryptolocker_elex.exe
- Size 56KB
- Sample260820-hmwcaaca24
- SHA256 bc7a3dd79fe409c3c05291bb587b0dd1b028fd4695edac720a08f4873d993689
- MD5 a66f1afdfea8eedb3f17743ccd2ddea0
- SHA1 59c6cbd1e687758a530400ddfd9cf8c06d0f62a9
- SHA512 4571aa8ac5bda5e951f16c1115c904821528f46f37c011a50d31d50c1a80ca6de6ca172ba555b5721b160eb44417e44edabca6ac08d31de58524de936e1d3367
- SSDEEP 768:br74zYcgT/Ekd0ryfjXaoP+NSBz1EXEl5EyKaIZsIunqpeNswmQak:br6YcA/X6GLadNSBBSm5zI/W19
- TLSH T1CD43F8397FD62A72D3778AB195F790C3BD3AB82239158C0D44CE53484933F56AD92A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/2524-0-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2524-3-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001b85a-14.dat CryptoLocker_rule2 behavioral2/memory/5960-19-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5960-21-0x0000000008000000-0x000000000800E000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5960 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 2026-08-20_a66f1afdfea8eedb3f17743ccd2ddea0_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 2524 wrote to memory of 5960 2524 2026-08-20_a66f1afdfea8eedb3f17743ccd2ddea0_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_a66f1afdfea8eedb3f17743ccd2ddea0_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_a66f1afdfea8eedb3f17743ccd2ddea0_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2524 -
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:5960
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 56KB
- SHA256 3a3ab80364d4a7cec5c7aa5a30a59ace4ea156cf7e389e075f615ae81a0f8dd2
- MD5 90c5c6b5b63ceeda4d673bd2d9c6ba2e
- SHA1 cb229eea11b6719b2eea3d547442f56f19a6f693
- SHA512 4995e55ea7481812c73178b2a89b3dbc82d58cc2c7c68b015c17c4fe2e86d0c6e0215855718eaf2f565286ab807f7c65d43e6bb08e220d579e1e9590559f1ad4
- SSDEEP 768:br74zYcgT/Ekd0ryfjXaoP+NSBz1EXEl5EyKaIZsIunqpeNswmQaS:br6YcA/X6GLadNSBBSm5zI/W13
- TLSH T13C43F8397FD62A72D3778AB195F790C3BD3AB82239158C0D44CE53484933F56AD92A0E
- MD5 SHA1 SHA512 SSDEEP TLSH