Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
30/09/2026, 16:35
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-29_cab97f398d818d8cf9e3c7a075879938_cryptolocker_elex.exe
Resource
win10v2004-20260911-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-29_cab97f398d818d8cf9e3c7a075879938_cryptolocker_elex.exe
Resource
win11ltsc2024-20260911-en
6 signatures
150 seconds
General
- Target 2026-09-29_cab97f398d818d8cf9e3c7a075879938_cryptolocker_elex.exe
- Size 44KB
- Sample260930-t3xe3adb54
- SHA256 c9bf0170f35b5484b57c128de71f2f6c90ffa37c14a434662b2087b07d0d55f9
- MD5 cab97f398d818d8cf9e3c7a075879938
- SHA1 856738061b31b9a9194b9748619af042c0fa358b
- SHA512 ca80943b37bb4668acd8df246917a838aea0a28de82332f9d1e9495aa469009d6158269248a2a48b09ab56426c20d09a95ad35582130bfb4ba7b57b44facd615
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpc89NKzE:bgGYcA/53GAGgIvFWEw
- TLSH T1751353387FD62972D37BDFB586F691C2B975B8223D16980D40CA43844833F56EC91A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5728-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b00000001b2cb-13.dat CryptoLocker_rule2 behavioral2/memory/4424-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4424-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4424 hasfj.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname hasfj.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain hasfj.exe - 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 2026-09-29_cab97f398d818d8cf9e3c7a075879938_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 5728 wrote to memory of 4424 5728 2026-09-29_cab97f398d818d8cf9e3c7a075879938_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-29_cab97f398d818d8cf9e3c7a075879938_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-29_cab97f398d818d8cf9e3c7a075879938_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5728 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
PID:4424
-
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 2158fbb02b2e4d592f1499dea4d1cac6221c2960c3a2db5dd3047f203ac3e5a4
- MD5 d26f96a54485d04e743bd9d41b69b217
- SHA1 34c752cfa0ec9c32c42aa08f19e174f84f6fa6be
- SHA512 7566bca1e8eee97fe1438a9f10a5219ed013976146fc004ae1af4977c9e883a7a35ee7d497a646ddce0da725240b6bbdf4a100460dfa4404934c8202eecd570b
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpc89NKzPs:bgGYcA/53GAGgIvFWEA
- TLSH T1812353387FD62932D37BDFB586F691C2B975B8223D16980D40CA43844833F56EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH