Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
22/08/2026, 03:25
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-22_d8d0c23882d735cd7d44765970bad3a6_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-22_d8d0c23882d735cd7d44765970bad3a6_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-22_d8d0c23882d735cd7d44765970bad3a6_cryptolocker_elex.exe
- Size 46KB
- Sample260822-dyr2saen7y
- SHA256 fd0f38b98235ea6acc745f0d4b1f33d162aaeb0696f28486ab9a736aef9bab64
- MD5 d8d0c23882d735cd7d44765970bad3a6
- SHA1 b978a2cdb9d442fadf36f34fd86ba3d584643775
- SHA512 817851b00a5c6f9d41242ab20bc8bcc17cecf0468d0643acc9fef561a6a80529b30adf35ed1e8a48693abfe11449a39c6baec63da2cf50ebd6c753e465c2f489
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ16V:bgGYcA/53GAGgIvFW1k
- TLSH T13E2344387FE62932D37BDFB586F691C6B93578223D16980D40DA43844833F66DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1308-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c000000019cc9-13.dat CryptoLocker_rule2 behavioral2/memory/2768-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2768-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2768 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 2026-08-22_d8d0c23882d735cd7d44765970bad3a6_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1308 wrote to memory of 2768 1308 2026-08-22_d8d0c23882d735cd7d44765970bad3a6_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-22_d8d0c23882d735cd7d44765970bad3a6_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-22_d8d0c23882d735cd7d44765970bad3a6_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1308 -
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:2768
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 46KB
- SHA256 579b4f2f79cfce8f9aca9a9a01434b2b652e817753f9f278a74ad45ea7a4e8c1
- MD5 e2bfa62c2d75fdb794a37335e0163424
- SHA1 dfe62fddaf0c7af1589cf9e39a78388a97e60298
- SHA512 3697dba03d57c1d8da18feb640d14d4a274cd36be3f76c610f8f31c0b67b99f5c4b33119718c58d67df9a22d498136baa1cbb5006a7c6e3abcdd4c8e6ebfd318
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ16l:bgGYcA/53GAGgIvFW18
- TLSH T1832344387FE62932D37BDFB586F691C6B93578223D16980D40DA43444833F66DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH