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
19/08/2026, 06:03
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-19_337aabff7a24f9ed0007c96c953c3e6a_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-19_337aabff7a24f9ed0007c96c953c3e6a_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-19_337aabff7a24f9ed0007c96c953c3e6a_cryptolocker_elex.exe
- Size 48KB
- Sample260819-gsclpaen21
- SHA256 f9d8cdfc3921860295416ab5139d22b9435ef0a66d3cbb67c6662b1ff608fe2a
- MD5 337aabff7a24f9ed0007c96c953c3e6a
- SHA1 32b80255c17d46be3badf73a6bcb82fdaefa1f51
- SHA512 a825ed4336e80e52645235d790ab928985ce1ff543e1bb4e341fc212aa22e364be933aba1730ffa04729ed6a77c82142ce6cf9160a5153b2c4b4d8c5351054ba
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIKJTAi:bgGYcA/53GAGgIvF9v2ZZi
- TLSH T1252345387FE66932E37BCFB586F651C6B975B8223D16980D40CA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3396-9-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000011371-13.dat CryptoLocker_rule2 behavioral2/memory/248-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/248-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 248 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 2026-08-19_337aabff7a24f9ed0007c96c953c3e6a_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 3396 wrote to memory of 248 3396 2026-08-19_337aabff7a24f9ed0007c96c953c3e6a_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-19_337aabff7a24f9ed0007c96c953c3e6a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-19_337aabff7a24f9ed0007c96c953c3e6a_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3396 -
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:248
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:3688
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 48KB
- SHA256 ba1d03c1007e2d283a5713358949c40cc8eab372ec5142f8655ff0a5dfe02f90
- MD5 31c2c03c637feac38283880426fa46e7
- SHA1 bdc8a32d81cb022376e965ce2c649742739e6171
- SHA512 16c481b10afca2fdb6413ff6ae29e91035935b3fdc8c6b62983c1d2e6e71d8ec45bce458c6cdd8ce2422085adfed3546a261184e910884cdb9c0f68ee38bd070
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIKJTAw:bgGYcA/53GAGgIvF9v2ZZw
- TLSH T1253345387FE56932E37BCFB586F691C6B975B8223D16980D40CA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH