Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/08/2026, 14:59
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-04_9081f0d23b87616c54c1753410dc5f9f_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-04_9081f0d23b87616c54c1753410dc5f9f_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-08-04_9081f0d23b87616c54c1753410dc5f9f_cryptolocker_elex.exe
- Size 41KB
- Sample260804-scprvszyez
- SHA256 fa66fcc84b9f1f36a5683c7d53ce9e2fa0690f3ce34ea2f19b32bd38aeef9682
- MD5 9081f0d23b87616c54c1753410dc5f9f
- SHA1 826107980d6624b38ddc99bc7f5086dd32421155
- SHA512 8be7e2474beaf0c8433e07f4d8cacb65dea392d652a2a24d9fa6c0d43c6e12ac21dcf3455492b9894a04b0a6e4ce2824a51a7fca0a4630b1d983f480a867f3e7
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCa:bgGYcA/53GAGgIvF7
- TLSH T15B1374387FE62972E37BDFB586F691C27975B8223D16880D40CA53844833F66DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2332-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x001100000001122a-13.dat CryptoLocker_rule2 behavioral2/memory/3508-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3508-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3508 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 2026-08-04_9081f0d23b87616c54c1753410dc5f9f_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 2332 wrote to memory of 3508 2332 2026-08-04_9081f0d23b87616c54c1753410dc5f9f_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-04_9081f0d23b87616c54c1753410dc5f9f_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-04_9081f0d23b87616c54c1753410dc5f9f_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2332 -
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:3508
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 9cd14f83343fbb280b6aa1ab446b32d0a49a7cc53be747d5b87221d45ba992f4
- MD5 36fa26b2aa38a4b3f120cb37543f8bf7
- SHA1 b5f219ff893021068db12008c2682231342062be
- SHA512 6c9638eef57c28562df681314b4ed87a97bf3be5b72a373ccdf7bae1b5ed70e44045d43f3316942390e91b9fb36d82f2c1afae6bb6d8ca16a8da5d71eab08f41
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXC2:bgGYcA/53GAGgIvFH
- TLSH T1351374387FE62972E37BDFB586F691C67975B8223D16980D40CA53844833F62DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH