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
18/07/2026, 07:34
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-18_7580fe24633c0825ad55c9c12ebbb53c_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-18_7580fe24633c0825ad55c9c12ebbb53c_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-18_7580fe24633c0825ad55c9c12ebbb53c_cryptolocker_elex.exe
- Size 47KB
- Sample260718-jd367sct7r
- SHA256 de708d4ab3dda66b06bb0df59e75abb1409b221249ef23467c67780acf6f794c
- MD5 7580fe24633c0825ad55c9c12ebbb53c
- SHA1 d4569b09ab97e68be30556eca7a6061e947459cd
- SHA512 37fcf83eedde5a835aff292d9ca9fe9a0546bf67a6f875749941a2765905d5ea10c242872d42d7358c568330d45d6fbbf8c1e5b75957165859a9f55f14f7fe9f
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqv:bgGYcA/53GAGgIvF7Eg
- TLSH T1D72321387BE52932D37BDFB586F691C6B975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1152-9-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b884-13.dat CryptoLocker_rule2 behavioral2/memory/6120-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/6120-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 6120 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 2026-07-18_7580fe24633c0825ad55c9c12ebbb53c_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 1152 wrote to memory of 6120 1152 2026-07-18_7580fe24633c0825ad55c9c12ebbb53c_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-18_7580fe24633c0825ad55c9c12ebbb53c_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-18_7580fe24633c0825ad55c9c12ebbb53c_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1152 -
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:6120
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 eb9946e493ff34ea56c0c91350e81709f5fce0aaf5947d8e6fabb34c2cb5bb72
- MD5 9289dce184781c7fec230b41d8b69530
- SHA1 0d4d0b8f730823b6311fd40f42525e1b38d96135
- SHA512 77345e81965f020698d79db4fa31c3e4806dd3dbd891812f229f1db432f8f479b83e9335dd8ab1ffbefea09e5dc44a1bef55102d0df1144283998dca5e0e6aa7
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhqh:bgGYcA/53GAGgIvF7ES
- TLSH T1022321387BE52932D37BDFB586F691C6B975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH