Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
07/07/2026, 04:27
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-06_34e8962ca16eb79c90213d24c58c0012_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-06_34e8962ca16eb79c90213d24c58c0012_cryptolocker_elex.exe
Resource
win11ltsc2024-20260706-en
5 signatures
150 seconds
General
- Target 2026-07-06_34e8962ca16eb79c90213d24c58c0012_cryptolocker_elex.exe
- Size 41KB
- Sample260707-e3lk8sey6k
- SHA256 6b90563df7fd975e5717cd1af704a3e9d300d07196454b94cf6c3cba45c430e1
- MD5 34e8962ca16eb79c90213d24c58c0012
- SHA1 12a2bb5efbbc2717c6dba5796b3a3a8952a79e49
- SHA512 473e10f8a06fb08e453f9a8651af44a66379e7992cea6296bd2d06a468d0ace840f34fa29b9d4a58b411c690ff05f061668b5c61172143b0d6ea88dec9ef0d14
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXC6y:bgGYcA/53GAGgIvFG
- TLSH T1D91385387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5040-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000900000001b320-13.dat CryptoLocker_rule2 behavioral2/memory/5612-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5612-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5612 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 2026-07-06_34e8962ca16eb79c90213d24c58c0012_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5040 wrote to memory of 5612 5040 2026-07-06_34e8962ca16eb79c90213d24c58c0012_cryptolocker_elex.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-06_34e8962ca16eb79c90213d24c58c0012_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-06_34e8962ca16eb79c90213d24c58c0012_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5040 -
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:5612
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 41KB
- SHA256 76583d53ac43cfa8b587261f87502435a407908eaea87088f00b6f802f0dc517
- MD5 1720ee33ff3a08cda1c223bd9a846cac
- SHA1 45604cb0b8ab65ccb6ffe5e2330b7adae8f9f9cc
- SHA512 7a198465fdc40ff31738527d80dcc9d03e4df4ed73d63d255a0434d4c5310510848590d38de69c2b842d84da684b2591cb43e8de882cd8e23e0db5798ed0cca3
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXC6O:bgGYcA/53GAGgIvFa
- TLSH T1D41385387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F62DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH