Analysis
- max time kernel
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
11/10/2026, 09:24
General
- Target ef00cd4ee9023097483b31847258ab694f11d5d3f7afe0e22e2d0654a596c729.exe
- Size 741KB
- Sample261011-ldcela115j
- SHA256 ef00cd4ee9023097483b31847258ab694f11d5d3f7afe0e22e2d0654a596c729
Malware Config
Signatures
- Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 3 IoCs
- Drops file in Windows directory 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ef00cd4ee9023097483b31847258ab694f11d5d3f7afe0e22e2d0654a596c729.exe"C:\Users\Admin\AppData\Local\Temp\ef00cd4ee9023097483b31847258ab694f11d5d3f7afe0e22e2d0654a596c729.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
-
C:\windows\tsay.exeC:\windows\tsay.exe1⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\windows\ttry.exe"C:\windows\ttry.exe"2⤵
- Modifies visibility of file extensions in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
2Replay Monitor
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Downloads
tsay.exe
memory/1540-0-0x0000000000400000-0x0000000000477000-memory.dmp
memory/1540-1-0x0000000002230000-0x0000000002231000-memory.dmp
memory/1540-2-0x0000000000453000-0x0000000000454000-memory.dmp
memory/1540-3-0x0000000000400000-0x0000000000477000-memory.dmp
memory/4120-6-0x0000000000400000-0x0000000000477000-memory.dmp
memory/4120-5-0x0000000000400000-0x0000000000477000-memory.dmp
memory/4120-9-0x0000000000400000-0x0000000000477000-memory.dmp
memory/5800-10-0x0000000000400000-0x0000000000477000-memory.dmp
memory/5800-11-0x0000000000400000-0x0000000000477000-memory.dmp