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
22/08/2026, 17:15
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-21_2d28f861be63c22ec32e9f3fe985fbaa_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_2d28f861be63c22ec32e9f3fe985fbaa_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-21_2d28f861be63c22ec32e9f3fe985fbaa_cryptolocker_elex.exe
- Size 30KB
- Sample260822-vsmcsaxake
- SHA256 91019865be3c741a1f3ed16fef4d3273a24e071b37a0e4954f608022276a3e60
- MD5 2d28f861be63c22ec32e9f3fe985fbaa
- SHA1 dd000fb976f7d609b52224834590014f184b0c3c
- SHA512 89a85d4a2ee8ec1be93a915c926156d9ffbeaa44798b22be400a0dc1558576ac590bc96ae11b7b99c8a3cde4d5355ff8093719898535da104791dc777e28d278
- SSDEEP 384:b674uGLLQRcsdeQ72ngEr4K7YmE8j60payjfjDnHMmHBdaFq:b674zYcgT/Ekd0cqfjzsmHBd0q
- TLSH T1D0D2E9347BE72C71E37B9E7456F79082B93ABC223E25484E58CF73488973792A84154E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x0007000000011394-13.dat CryptoLocker_rule2 behavioral2/memory/5540-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3424 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 2026-08-21_2d28f861be63c22ec32e9f3fe985fbaa_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 5540 wrote to memory of 3424 5540 2026-08-21_2d28f861be63c22ec32e9f3fe985fbaa_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_2d28f861be63c22ec32e9f3fe985fbaa_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_2d28f861be63c22ec32e9f3fe985fbaa_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5540 -
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:3424
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 30KB
- SHA256 9067a20a5825dd3d812de68f589f7af2648b31182da35221e8f23a7222add867
- MD5 29edb804153dcb855a68d3d27c98b8fb
- SHA1 dc7dd82a71f3210366b2d2d7809392a38c0c05d2
- SHA512 dd68ca6f4fb7ab2952b48d2dcd31084fa959abae4476779ee7c71931304c26b3d8049f3d751098eb5e9034eda970ce56bb3a42c750c962629fcfcfd65eeac70b
- SSDEEP 384:b674uGLLQRcsdeQ72ngEr4K7YmE8j60payjfjDnHMmHBdaF0:b674zYcgT/Ekd0cqfjzsmHBd00
- TLSH T1F4E2F9347BE72C71E37B9E7456F79082B93AB8223E25484E58CF73488933792AC4154E
- MD5 SHA1 SHA512 SSDEEP TLSH