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
16/08/2026, 17:44
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-16_73b256caf41183e6ccd14619123c0132_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-16_73b256caf41183e6ccd14619123c0132_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-16_73b256caf41183e6ccd14619123c0132_cryptolocker_elex.exe
- Size 42KB
- Sample260816-wa5bbatckd
- SHA256 9b8849edf8a27065251b39d506f8804ebcbe9a9fe641b20338a5011423c10c70
- MD5 73b256caf41183e6ccd14619123c0132
- SHA1 2fac93acfad8a31d3e18830dcc64d64581256ca8
- SHA512 abcf30565c73e5d00d36d78a951d71a5a8a5f1409ab72ed36b9562f435c775c59062520fc585584761278ba01a6a4012fb6ce2e3e444f57b80125f437dac0361
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCC:bgGYcA/53GAGgIvFz
- TLSH T1E11375387FE62972E37BDFB586F691C67935B8223D16980D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2672-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b000000011377-13.dat CryptoLocker_rule2 behavioral2/memory/4400-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4400-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4400 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 2026-08-16_73b256caf41183e6ccd14619123c0132_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 2672 wrote to memory of 4400 2672 2026-08-16_73b256caf41183e6ccd14619123c0132_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-16_73b256caf41183e6ccd14619123c0132_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-16_73b256caf41183e6ccd14619123c0132_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672 -
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:4400
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 45e8780fedd5be59f756757b8960d49107c1143ee311ac618d37328c8a7a99a1
- MD5 bdb64c1e5d8308f8db680ed625d5a405
- SHA1 cff37df1d46a1e94a2a39926bb4557207bf32575
- SHA512 e6a3c219da5c186131936eacd002c8110283d4f95d595239071df8f35b04153cd4dcc330e14ccdee291f4eadbdc97bd760c2ef2ce486842beb5bb58710333e55
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCm:bgGYcA/53GAGgIvFH
- TLSH T18E1375387FE62972E37BDFB586F691C67935B8223D16980D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH