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
25/08/2026, 18:40
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-24_14794a51e18e5c0f379ad2bc679f4c3a_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-24_14794a51e18e5c0f379ad2bc679f4c3a_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-24_14794a51e18e5c0f379ad2bc679f4c3a_cryptolocker_elex.exe
- Size 47KB
- Sample260825-xbpspat1ds
- SHA256 7ced95b809407ce81f9e0d1c9ca6f4394103559bc5b1313fbfa602cf8521c4b3
- MD5 14794a51e18e5c0f379ad2bc679f4c3a
- SHA1 c1dc8e4ff374e549163dfa19ececf173fa6d3ce3
- SHA512 915256d17db0ba4d98fea8425cfdc186033960e2c8ef7c278d608dccea4dc51f3f058253b3878d6275ea98a9360dc60874d77e0f3b6a2cba1fa53da18d3c256b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhuK:bgGYcA/53GAGgIvF7EkK
- TLSH T1102322387FE62932E37BDFB586F691C6B975B8223D16980D40CA43444833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4372-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b85f-13.dat CryptoLocker_rule2 behavioral2/memory/4220-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4220-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4220 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 2026-08-24_14794a51e18e5c0f379ad2bc679f4c3a_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 4372 wrote to memory of 4220 4372 2026-08-24_14794a51e18e5c0f379ad2bc679f4c3a_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-24_14794a51e18e5c0f379ad2bc679f4c3a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-24_14794a51e18e5c0f379ad2bc679f4c3a_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4372 -
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:4220
-
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 9916315676a23ed2291a93fb6bdfbfca17a7402d4dba955a487b1920b10f862f
- MD5 c96fe466e63f4aa6ebc603237834ebf2
- SHA1 bc355399fb44486e42c8668dd3cd6eb3699a013d
- SHA512 ca84964a2edbfcf6b2433116b7402328327aff33eae7c1626e910c78f491ed50a285c7c7f59fc7885c7b9cd513c61677d2af2fc56eb45e8411d47a6e7fbfaa2e
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhup:bgGYcA/53GAGgIvF7Ekp
- TLSH T1B02322387FE52932E37BDFB586F691C6B975B8223D16980D40CA43444833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH