Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
13/08/2026, 01:11
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-12_51203d3d141110e474286de6cf628a97_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-12_51203d3d141110e474286de6cf628a97_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-12_51203d3d141110e474286de6cf628a97_cryptolocker_elex.exe
- Size 47KB
- Sample260813-bj8d4sxtax
- SHA256 aa00cf1d40695c9b8981b81c14399c3b3dd1ddc0bd44db516a9ab7b58e5b96ea
- MD5 51203d3d141110e474286de6cf628a97
- SHA1 7f151530c5d039cb32ba3077c8903399ed79937a
- SHA512 df7e87a728f10446d9897db7daa9f166267c9e0c0afab5e3c6719a8a27d320f08302d65078c55d62c6c29d514cb743dfe34b800c3c067ca7f0d9422c33bf6f2f
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhX:bgGYcA/53GAGgIvF7ER
- TLSH T1802322387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444833F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/6080-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x001200000001157e-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 2026-08-12_51203d3d141110e474286de6cf628a97_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 6080 wrote to memory of 6512 6080 2026-08-12_51203d3d141110e474286de6cf628a97_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-12_51203d3d141110e474286de6cf628a97_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-12_51203d3d141110e474286de6cf628a97_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6080 -
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
-
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 49d1194bb5cab24c4e0d439f30239a262d071899d268757a2fe72a21349c2d2a
- MD5 405c27a77e8e13f0585f2abffd9c7181
- SHA1 109d92c22124060afe31bac12cd5012ffb9a430d
- SHA512 ce00a7bee7e836f7e9f417c6f3053a1f49c92be8e77cdf551c7e9aecded62c1d35996fa97ce8eb69236f38cd0c0bd18e7ae24dbddf14da0859e8c7454c46a246
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhZ:bgGYcA/53GAGgIvF7EP
- TLSH T1FB2321387BE52932D37BDFB586F691C6B975B8223D16980D40CA43444C33F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH