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
02/08/2026, 11:47
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-02_44976abfc9b51a6f23e994f50bd401cb_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-02_44976abfc9b51a6f23e994f50bd401cb_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-02_44976abfc9b51a6f23e994f50bd401cb_cryptolocker_elex.exe
- Size 44KB
- Sample260802-nx89sahe44
- SHA256 26c2f2c6f320cacd094ecaf26a32688145360bb9ff5e29635037423b35eaa918
- MD5 44976abfc9b51a6f23e994f50bd401cb
- SHA1 79bca724387bd4733b2ee920b08a915570cfd693
- SHA512 a8a431e2453a2e948287b65df211fe9229b291760902e27d05e36b69fc9d38a7704f5f89d56c903fd4174035298f1c9c6b5d944b5e9c54dca80555c22c76d664
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXr:bgGYcA/53GAGgIvFB
- TLSH T1BD1355387FE62972E37BDFB586F691C6B93578223D16980D40CA53844833F66DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2524-8-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001b85a-13.dat CryptoLocker_rule2 behavioral2/memory/5960-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5960-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5960 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 2026-08-02_44976abfc9b51a6f23e994f50bd401cb_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 2524 wrote to memory of 5960 2524 2026-08-02_44976abfc9b51a6f23e994f50bd401cb_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-02_44976abfc9b51a6f23e994f50bd401cb_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-02_44976abfc9b51a6f23e994f50bd401cb_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2524 -
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:5960
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 44KB
- SHA256 8cd48b8cb74d8f41feaee0d4a70995191c53a400f9b85f94765b417c304f1c48
- MD5 9aa436b837319bed424d56f242f38702
- SHA1 501abf05aa6aaf002268841339a16326fd6993bf
- SHA512 5bc904ba028e996c550ce644462c860f818aa51dda06df6531ba70c34b142d3e5bbe84df4e1de041d816e3cda66e3ef58413c67e248d4aa1f1e2044e783cea8f
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXm:bgGYcA/53GAGgIvFA
- TLSH T1391355387FE62972E37BDFB586F691C6B93578223D16980D40CA53844833F66DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH