Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260630-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260630-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/07/2026, 22:58
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-02_2965293f2cdbad72335febf327286631_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-02_2965293f2cdbad72335febf327286631_cryptolocker_elex.exe
Resource
win11ltsc2024-20260630-en
5 signatures
150 seconds
General
- Target 2026-07-02_2965293f2cdbad72335febf327286631_cryptolocker_elex.exe
- Size 40KB
- Sample260702-2x2rlags7w
- SHA256 d7e266214cc859eec93888bd162644bd2f461eaddef0b0b21a7187935d239f5e
- MD5 2965293f2cdbad72335febf327286631
- SHA1 b53c9d66b3724e5de60c8e4f1c3eab56df5b96d1
- SHA512 d40a9d71517f0b729aa475035b13d0dc6df718066fb259ef260c4dd049a4c304f8154a3720a9ad037f973233abb588169634eb4649521623851ff39bc9dbfe77
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCL:bgGYcA/53GAGgIvFC
- TLSH T1C91375387BE62972D37BDFB586F691C67975B8223D16880D44CA53844833F62EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3172-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0006000000016b43-13.dat CryptoLocker_rule2 behavioral2/memory/1420-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1420-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1420 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 2026-07-02_2965293f2cdbad72335febf327286631_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 3172 wrote to memory of 1420 3172 2026-07-02_2965293f2cdbad72335febf327286631_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-02_2965293f2cdbad72335febf327286631_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-02_2965293f2cdbad72335febf327286631_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3172 -
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:1420
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 40KB
- SHA256 e4581e458cd13ff4690f8b87ff4191475cacbc800d758167d78d54616885f6cb
- MD5 e6a806ad4d6226570594afc37753ff4c
- SHA1 6d60fd699ff9d58764d76082919c9bb7587a4420
- SHA512 eead6eb9e0f56dd0327ea0bbaa108193919ab97439710e307b3029639c1cd85ab1180b34e384dbcf57e3efa96054744b4c3e674c68a0a3a7139d8389b919981b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXC7:bgGYcA/53GAGgIvFK
- TLSH T1791375387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62EC51A0E
- MD5 SHA1 SHA512 SSDEEP TLSH