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
28/09/2026, 12:17
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-28_bf20ed05b376366d9f5034e882377fdc_cryptolocker_elex.exe
Resource
win10v2004-20260911-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-28_bf20ed05b376366d9f5034e882377fdc_cryptolocker_elex.exe
Resource
win11ltsc2024-20260911-en
6 signatures
150 seconds
General
- Target 2026-09-28_bf20ed05b376366d9f5034e882377fdc_cryptolocker_elex.exe
- Size 93KB
- Sample260928-pf3aksvsas
- SHA256 9e11b8ca73654c6c716e9c54bc23322465c9dd180e55404bd8dfc9671c81c2e0
- MD5 bf20ed05b376366d9f5034e882377fdc
- SHA1 36b0a6fc962c89994b15ebc8ec0b9eaef6c54c35
- SHA512 6298170173c6f3b9e3b12d50c6c6f3428873d1038e50f9c67cc9b6e7f49eade473d0d5b40d2b0f95659e925c5261e011b4f79c033986fa6cd72f4c48d04fabbd
- SSDEEP 1536:ZzFbxmLPWQMOtEvwDpj386Sj/Rs580giz6SJ0U/6Yks:ZVxkGOtEvwDpjcW
- TLSH T13293BC786FE91672E3BBDEB6C6F641C2B935B4223C12D80D40DA53450823F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000c00000001b834-13.dat CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3248 misid.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 misid.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain misid.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 2026-09-28_bf20ed05b376366d9f5034e882377fdc_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language misid.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5564 wrote to memory of 3248 5564 2026-09-28_bf20ed05b376366d9f5034e882377fdc_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-28_bf20ed05b376366d9f5034e882377fdc_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-28_bf20ed05b376366d9f5034e882377fdc_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5564 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
PID:3248
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 93KB
- SHA256 de35d50c9a139ca1e0e8ef95c0b021d7bf5725a15ec9e641c96ed8d2e20fbff6
- MD5 fb49c3b70fe74ead0fb8731d1682250d
- SHA1 bd543633a33f03e8edbf3de569a1081263aab953
- SHA512 4b9f15602ac1f39eda1f5c73521f17ffc1be99f7084f6123e0f79febabd6e52891c0df5820172779c0e3f2bc793c02c98bb0e911a063df50ee0c6e5ae1e75e2a
- SSDEEP 1536:ZzFbxmLPWQMOtEvwDpj386Sj/Rs580giz6SJ0U/6YkO:ZVxkGOtEvwDpjc0
- TLSH T14C93BC786FE91672E3BBDEB6C6F641C2B935B4223C12D80D40DA53450823F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH