Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
31/08/2026, 01:04
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-30_f187a14f5feba83380623f478b5fbeb1_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-30_f187a14f5feba83380623f478b5fbeb1_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-30_f187a14f5feba83380623f478b5fbeb1_cryptolocker_elex.exe
- Size 42KB
- Sample260831-be148seb97
- SHA256 e88d27001a73a8a7ecedd1c55a792835c55ddd4653ce0f5cbc545c8380a8353e
- MD5 f187a14f5feba83380623f478b5fbeb1
- SHA1 037d6daa286608ad8b78d81611753bc99a5e8a2c
- SHA512 dfe3989be18c8dd0d4c76e58ac40a5f91296aacf42623c7b61c9fec7c78ca263ca85a3e4329abbe5ba34b01f8362659c60be0525ee71d87e79cfc23c3dfd9ece
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCd:bgGYcA/53GAGgIvFI
- TLSH T1601374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2508-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x00130000000118e9-13.dat CryptoLocker_rule2 behavioral2/memory/6512-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/6512-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 6512 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 2026-08-30_f187a14f5feba83380623f478b5fbeb1_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 2508 wrote to memory of 6512 2508 2026-08-30_f187a14f5feba83380623f478b5fbeb1_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-30_f187a14f5feba83380623f478b5fbeb1_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-30_f187a14f5feba83380623f478b5fbeb1_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2508 -
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:6512
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:6492
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 43KB
- SHA256 97af9e7d0d97323956ac3fb7171c238eabe40c342becc7403795613dd7439e6f
- MD5 63589ace9bf2abee981fef9e9aca8628
- SHA1 bedbde27721787b14dbedaebf7dc591c2a981366
- SHA512 09f6b47addaa9ca46a375567a7949f80b638324ff2e387d121d940479ab09659a8d67f636958c40ec622ea3fa06da11bd04bc3930d469a75032ff8225b752fc0
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCU:bgGYcA/53GAGgIvFJ
- TLSH T1CD1374387FE62972E37BDFB586F691C27975B8223D16980D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH