Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
27/07/2026, 00:49
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-27_5cc9fab568f0487b13127459d626186a_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-27_5cc9fab568f0487b13127459d626186a_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-27_5cc9fab568f0487b13127459d626186a_cryptolocker_elex.exe
- Size 41KB
- Sample260727-a6dbtatwe1
- SHA256 ffed92d5aa9b2fc91c1818c6bb92d92903aec4d8fba2c301456577233ae4be5e
- MD5 5cc9fab568f0487b13127459d626186a
- SHA1 a1f3c65a1d08f511605f9323e423d746f9aae879
- SHA512 583bfa0352ec95658c0f5ff53a2ccde5272933ce0641b1321d7073cdc9291fad5b5415048c32f3fdf3ca7bdc534484c602400752e4afaf01a688d3b97807a051
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXC3:bgGYcA/53GAGgIvFu
- TLSH T1DD1375387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3980-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b000000019cb8-13.dat CryptoLocker_rule2 behavioral2/memory/1712-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1712-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1712 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_5cc9fab568f0487b13127459d626186a_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 3980 wrote to memory of 1712 3980 2026-07-27_5cc9fab568f0487b13127459d626186a_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-27_5cc9fab568f0487b13127459d626186a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-27_5cc9fab568f0487b13127459d626186a_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3980 -
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:1712
-
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 f890a6f0c55012a856e16178e911fe0115921b3430df9f803ae5bd22cd8bc894
- MD5 7afee3770e10f5facd2a6561d876618c
- SHA1 c7231151a81e41f4f70514efe9d9547d04016536
- SHA512 d16f379cf5ac98d23a25d4ac9c6b5b8ac58558104ec7c13109ef8cb6a4bb0027107cf3b5015ab991dc26db1e70b6f96cae742135c325fe4eb51ceaa35cd28d3f
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCE:bgGYcA/53GAGgIvFp
- TLSH T11C1375387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH