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
24/08/2026, 15:24
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-23_265a97c888a881d606f2d35d4e50c2a6_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-23_265a97c888a881d606f2d35d4e50c2a6_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-23_265a97c888a881d606f2d35d4e50c2a6_cryptolocker_elex.exe
- Size 52KB
- Sample260824-ss613szena
- SHA256 3e22e2b707bc344229060fee47a9f21cf45c5cb6ea5fc87f3871d3715003bce6
- MD5 265a97c888a881d606f2d35d4e50c2a6
- SHA1 a823615a38f609556cc95a0fed892daf9e289090
- SHA512 5c16869b87002ad2d1005ba7de6ad8a222eff95edb47a886defa4d422251aaaa5416eb5a5e7590449bdb08aa82ad60a79bc139913c9e8bccc2f418653aac0569
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ1J1ycC:bgGYcA/53GAGgIvFW17A
- TLSH T10F3311387BE52932E37BDFB586F691C6B935B8223D16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5408-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b853-13.dat CryptoLocker_rule2 behavioral2/memory/628-19-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/628-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 628 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 2026-08-23_265a97c888a881d606f2d35d4e50c2a6_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 5408 wrote to memory of 628 5408 2026-08-23_265a97c888a881d606f2d35d4e50c2a6_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-23_265a97c888a881d606f2d35d4e50c2a6_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-23_265a97c888a881d606f2d35d4e50c2a6_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5408 -
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:628
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 53KB
- SHA256 1be88ba208da821cd2368bafbf0461a36b0eb2ab7875c12a84a61ea188afee21
- MD5 d69d35af00b2b2adcf013c3fa31b8647
- SHA1 c2d0b92f3ffe0569d127a8371279447a9e8c55aa
- SHA512 18bc21f4a28a2eaea943be13d52dbb997564f8f1499b09fdd0613d93393725d7c913fa977008c231351876641baf5b00f70b2965d1dcdeb49bca8c9a414dc7ab
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ1J1yca:bgGYcA/53GAGgIvFW17o
- TLSH T1E93311387BE52932E37BDFB586F691C6B935B8223D16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH