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
17/08/2026, 03:42
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-17_1bdfa0d5677fda15e65ead75d49e86ac_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-17_1bdfa0d5677fda15e65ead75d49e86ac_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-17_1bdfa0d5677fda15e65ead75d49e86ac_cryptolocker_elex.exe
- Size 41KB
- Sample260817-d9d93asfpg
- SHA256 9845f0862a922fcc78e796e004e50731b475a40feac596a287b1c28f1b0d6dd3
- MD5 1bdfa0d5677fda15e65ead75d49e86ac
- SHA1 cd2d49f4416f10b0b6ce814c35e88c229ff68765
- SHA512 68c9c07d6e97e8385c89e703de37ba834c3364831c827a639ba399ca9c45ec8f9edc5c0f4ea2d8d1d81e560e64980259a1852d73af69309b07668dc553761ff7
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCPh:bgGYcA/53GAGgIvFuh
- TLSH T15D1375387FE62972E37BDFB586F691C67935B8223D16880D44CA53844833F62EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1192-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c000000016cd6-13.dat CryptoLocker_rule2 behavioral2/memory/1968-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1968-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1968 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 hasfj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-17_1bdfa0d5677fda15e65ead75d49e86ac_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1192 wrote to memory of 1968 1192 2026-08-17_1bdfa0d5677fda15e65ead75d49e86ac_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-17_1bdfa0d5677fda15e65ead75d49e86ac_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-17_1bdfa0d5677fda15e65ead75d49e86ac_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1192 -
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:1968
-
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 935f2059a2998f1ccdde43b4df8aff2a51180086e2351c30d7fcb3afaecf554a
- MD5 435946655c211380ce12061a4216fbf2
- SHA1 70b486c3604f29a3355feb55e4010606fe299382
- SHA512 5202299b477177bdcbd76200bfb46d2d963783ad5f48d0759de55e63d43be5b975e37c42c63a09b6a34fa6b10dc75ed9bd4705b1cc99688b3399411d2b817bb9
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCP7:bgGYcA/53GAGgIvFu7
- TLSH T1971375387FE62972E37BDFB586F691C67935B8223D16880D44CA53844833F62EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH