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, 13:59
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-31_d96a61e09872bb8d9d775d4f931dc22b_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-31_d96a61e09872bb8d9d775d4f931dc22b_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-31_d96a61e09872bb8d9d775d4f931dc22b_cryptolocker_elex.exe
- Size 53KB
- Sample260831-rag4kagh26
- SHA256 264c18879df47e8e8f17014e65fcfc86c4a9c763adde64bf31127e08ce792ca3
- MD5 d96a61e09872bb8d9d775d4f931dc22b
- SHA1 57f8c6f1bc9485d24b592b4f5e702cc8e0fe3d7c
- SHA512 6f12e9682c777c7a729295a5fe7673ac14e1b1867dd1f539262b246088ccfe0ba58067440ed06466e68bcc277d467bfc61188f776498d60994dbfefe7a8d73d7
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIK/Y:bgGYcA/53GAGgIvF9v2Zr
- TLSH T19D3312387BE56972E37BCFB586F691C6B93578223C16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3980-9-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b000000019cb8-13.dat CryptoLocker_rule2 behavioral2/memory/2872-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2872-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2872 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 2026-08-31_d96a61e09872bb8d9d775d4f931dc22b_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 3980 wrote to memory of 2872 3980 2026-08-31_d96a61e09872bb8d9d775d4f931dc22b_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-31_d96a61e09872bb8d9d775d4f931dc22b_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-31_d96a61e09872bb8d9d775d4f931dc22b_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3980 -
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:2872
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 53KB
- SHA256 e6158efde6cb301e83e0dc4069e3159a304ef869eb5b49ce4613dfc4afe04f6e
- MD5 57c34283433628d6ea0b082d3999554a
- SHA1 ed6485a0d01242b4b488d5e1b7e7bcd87a15668c
- SHA512 3ed0d90ef01efc18b573d8d8bc6912206cb71a08ac6558f41a60bac4bf458ede9dbcd1357a598e335dd66b6e37b98c5e59464dd28e25b493d992feef64dd8466
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIK/+:bgGYcA/53GAGgIvF9v2Zp
- TLSH T1EB3311387BE56A32E37BCFB586F691C6B93578223C16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH