Analysis
- user interaction
yes - max time kernel
33s - max time network
39s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
09/08/2026, 15:21
General
- Target Nocturn.exe
- Size 1.1MB
- Sample260809-srkrfs1akb
- SHA256 9531450c4b88ec8376fb10a3a4de46f42429afb0f55454fe39bd4f27597f30a3
Malware Config
Signatures
- Downloads MZ/PE file 4 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry class 1 IoCs
- Suspicious behavior: EnumeratesProcesses 28 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 7 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Nocturn.exe"C:\Users\Admin\AppData\Local\Temp\Nocturn.exe"1⤵
- Downloads MZ/PE file
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Suspicious use of SetWindowsHookEx
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Suspicious use of SetWindowsHookEx
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Suspicious use of SetWindowsHookEx
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Suspicious use of SetWindowsHookEx
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Suspicious use of SetWindowsHookEx
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Suspicious use of SetWindowsHookEx
-
C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Suspicious use of SetWindowsHookEx
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /71⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
FloridaHook.dll
memory/1392-32-0x00000216953A0000-0x00000216953A1000-memory.dmp
memory/1392-33-0x00000216953A0000-0x00000216953A1000-memory.dmp
memory/1392-34-0x00000216953A0000-0x00000216953A1000-memory.dmp
memory/1392-35-0x00000216953A0000-0x00000216953A1000-memory.dmp
memory/1392-36-0x00000216953A0000-0x00000216953A1000-memory.dmp
memory/1392-37-0x00000216953A0000-0x00000216953A1000-memory.dmp
memory/1392-26-0x00000216953A0000-0x00000216953A1000-memory.dmp
memory/1392-28-0x00000216953A0000-0x00000216953A1000-memory.dmp
memory/2488-7-0x0000000074EE0000-0x000000007569C000-memory.dmp
memory/2488-13-0x0000000074EE0000-0x000000007569C000-memory.dmp
memory/2488-12-0x0000000074EE0000-0x000000007569C000-memory.dmp
memory/2488-11-0x0000000074EF2000-0x0000000074EF3000-memory.dmp
memory/2488-10-0x0000000074EE0000-0x000000007569C000-memory.dmp
memory/2488-9-0x0000000074EE0000-0x000000007569C000-memory.dmp
memory/2488-0-0x0000000074EF2000-0x0000000074EF3000-memory.dmp
memory/2488-6-0x0000000004CB0000-0x0000000004CBA000-memory.dmp
memory/2488-3-0x0000000004D30000-0x0000000004DC2000-memory.dmp
memory/2488-2-0x00000000052F0000-0x00000000058AA000-memory.dmp
memory/2488-1-0x00000000001B0000-0x00000000002C4000-memory.dmp