Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260630-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260630-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/07/2026, 04:13
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-04_8b6ef605ea7d4854932a661a914ae68a_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-04_8b6ef605ea7d4854932a661a914ae68a_cryptolocker_elex.exe
Resource
win11ltsc2024-20260630-en
5 signatures
150 seconds
General
- Target 2026-07-04_8b6ef605ea7d4854932a661a914ae68a_cryptolocker_elex.exe
- Size 51KB
- Sample260704-ethg8aay7y
- SHA256 b968697608b0bb5ae56fc3fd0aa49cf7fb87ab965cc486385b1fdf7a15ece950
- MD5 8b6ef605ea7d4854932a661a914ae68a
- SHA1 474c86615543f78e5f10afde13a5f7122df6b12d
- SHA512 57ba856213e636442a48b39cf87f29efa778c4f133eb7c4e100f0771d1d2f3a312c5b64cda5e17d5047f28591024c23f787ffc4ae273449ca262ffab6829a36d
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ1J1ycR:bgGYcA/53GAGgIvFW17H
- TLSH T1113312387BE52932E37BDFB586F691C6B935B8223D16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5532-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000e0000000113ea-13.dat CryptoLocker_rule2 behavioral2/memory/5536-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5536-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5536 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 2026-07-04_8b6ef605ea7d4854932a661a914ae68a_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 5532 wrote to memory of 5536 5532 2026-07-04_8b6ef605ea7d4854932a661a914ae68a_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-04_8b6ef605ea7d4854932a661a914ae68a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-04_8b6ef605ea7d4854932a661a914ae68a_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5532 -
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:5536
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 51KB
- SHA256 f8cc735cd73c9db6fb0a4a76db9c4d075ee7715913578465e96fbf271e6befcd
- MD5 d3f2dfde1ecd63b9042474ebaed4a128
- SHA1 3351e6d71aae4b303e303204174cada2b602eac0
- SHA512 726ebdda7cc72514059d396b8f8231f0f83fcb94f368e61f795c20797fe7b2191bd91bfa08100512b64f600be155c23b852da12012337f925686ed6088bade1b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ1J1ycI:bgGYcA/53GAGgIvFW17a
- TLSH T1C73312387BE52932E37BDFB586F691C6B935B8223D16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH