Analysis
- max time kernel
150s - max time network
145s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
03/09/2026, 23:40
General
- Target attachment20260903-1106-by1yui.docx
- Size 104KB
- Sample260903-3nt6tscc53
- SHA256 4c5898e2bc707b9a6a067468a2c6f395f17e9fe3d4acf7379cf32551ecc45b15
Malware Config
Signatures
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Suspicious behavior: AddClipboardFormatListener 2 IoCs
- Suspicious use of SetWindowsHookEx 10 IoCs
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\attachment20260903-1106-by1yui.docx" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
fb3b0dbfee58fac8.customDestinations-ms
memory/4316-7-0x00007FFF47380000-0x00007FFF475E3000-memory.dmp
memory/4316-9-0x00007FFF04D40000-0x00007FFF04D50000-memory.dmp
memory/4316-3-0x00007FFF474DF000-0x00007FFF474E0000-memory.dmp
memory/4316-4-0x00007FFF074C0000-0x00007FFF074D0000-memory.dmp
memory/4316-5-0x00007FFF47380000-0x00007FFF475E3000-memory.dmp
memory/4316-1-0x00007FFF074C0000-0x00007FFF074D0000-memory.dmp
memory/4316-8-0x00007FFF47380000-0x00007FFF475E3000-memory.dmp
memory/4316-13-0x00007FFF47380000-0x00007FFF475E3000-memory.dmp
memory/4316-12-0x00007FFF47380000-0x00007FFF475E3000-memory.dmp
memory/4316-10-0x00007FFF47380000-0x00007FFF475E3000-memory.dmp
memory/4316-2-0x00007FFF074C0000-0x00007FFF074D0000-memory.dmp
memory/4316-11-0x00007FFF47380000-0x00007FFF475E3000-memory.dmp
memory/4316-6-0x00007FFF074C0000-0x00007FFF074D0000-memory.dmp
memory/4316-14-0x00007FFF04D40000-0x00007FFF04D50000-memory.dmp
memory/4316-15-0x00007FFF47380000-0x00007FFF475E3000-memory.dmp
memory/4316-16-0x00007FFF47380000-0x00007FFF475E3000-memory.dmp
memory/4316-25-0x00007FFF47380000-0x00007FFF475E3000-memory.dmp
memory/4316-0-0x00007FFF074C0000-0x00007FFF074D0000-memory.dmp
memory/4316-460-0x00007FFF074C0000-0x00007FFF074D0000-memory.dmp
memory/4316-462-0x00007FFF074C0000-0x00007FFF074D0000-memory.dmp
memory/4316-463-0x00007FFF074C0000-0x00007FFF074D0000-memory.dmp
memory/4316-461-0x00007FFF074C0000-0x00007FFF074D0000-memory.dmp
memory/4316-464-0x00007FFF47380000-0x00007FFF475E3000-memory.dmp