Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
24/07/2026, 00:23
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-23_1ee59c4139dcc5f4c3384120eab29bfb_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-23_1ee59c4139dcc5f4c3384120eab29bfb_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-07-23_1ee59c4139dcc5f4c3384120eab29bfb_cryptolocker_elex.exe
- Size 40KB
- Sample260724-apllvszekc
- SHA256 5e4f1b6711a10e392313aa1b7cab17d58fdb445f0f9fc87f479dc9726d606c7b
- MD5 1ee59c4139dcc5f4c3384120eab29bfb
- SHA1 f6ccbb7d9ef0c710a1212e6201e0e3ca046ffb99
- SHA512 fe80b8c5c17c9e6834c5d2d618325469285e606b93ab42783735d81e6362b4a8fa9ea66a80c1de3c8e9beeb6d66b92272df708410f7140d76856a683bb0d1155
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXC70:bgGYcA/53GAGgIvFl
- TLSH T1C21375387FE62972E37BDFB586F691C6B975B8223D16880D44CA53844833F62DC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5392-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001c5d6-13.dat CryptoLocker_rule2 behavioral2/memory/1372-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1372-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1372 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 2026-07-23_1ee59c4139dcc5f4c3384120eab29bfb_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 5392 wrote to memory of 1372 5392 2026-07-23_1ee59c4139dcc5f4c3384120eab29bfb_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-23_1ee59c4139dcc5f4c3384120eab29bfb_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-23_1ee59c4139dcc5f4c3384120eab29bfb_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5392 -
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:1372
-
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 ccf5f57a9ad7070d1c035b2be1fe8ef8fe3b96cd5fdf117e580cc2d0377969f5
- MD5 95832ce1e6bdc5a5ed7af731755cb86a
- SHA1 da78ddfb990ddeea0dcc4a37ca154650b3fd643c
- SHA512 3c14043c73e57e8dcbc5a880c87ff5de137d469e4792eecda1113f56712956b48a974d9701e2550d10b9d56601351840252ac104037620aad4ddece0d7c6cb9c
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXC71P:bgGYcA/53GAGgIvFuP
- TLSH T1611375387FE62972E37BDFB586F691C6B975B8223D16880D44CA53844833F62DC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH