Analysis
- user interaction
yes - max time kernel
16s - max time network
15s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
28/04/2026, 15:03
Errors
General
- Target PEEKABOO.exe
- Size 921KB
- Sample260428-sffclaey3m
- SHA256 deaf30953149d0bef45a11bd89f4ef69f77115e50380c7ef3607c37ff4f40a1d
Malware Config
Signatures
- Disables Task Manager via registry modification
- Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 6 IoCs
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- Drops file in System32 directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PEEKABOO.exe"C:\Users\Admin\AppData\Local\Temp\PEEKABOO.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\MBR2.exe"C:\Users\Admin\AppData\Local\Temp\MBR2.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\MatrixMBR.exe"C:\Windows\System32\MatrixMBR.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\GDI.exe"C:\Users\Admin\AppData\Local\Temp\GDI.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Local\Temp\MBR.exe"C:\Users\Admin\AppData\Local\Temp\MBR.exe"4⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x304 0x3001⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
GDI.exe
MBR.exe
MBR2.exe
TROLL2.exe
TROLL5.exe
MatrixMBR.exe
memory/968-55-0x00000000004F0000-0x0000000000536000-memory.dmp
memory/1984-17-0x0000000000150000-0x000000000018A000-memory.dmp
memory/2352-41-0x0000000004ED0000-0x0000000004EDA000-memory.dmp
memory/2352-40-0x0000000004F20000-0x0000000004FB2000-memory.dmp
memory/2352-39-0x00000000054D0000-0x0000000005A74000-memory.dmp
memory/2352-38-0x0000000000140000-0x00000000001F8000-memory.dmp
memory/2352-56-0x0000000004AE0000-0x0000000004D61000-memory.dmp
memory/2352-57-0x0000000004D70000-0x0000000004DCF000-memory.dmp
memory/2632-0-0x0000000000E20000-0x0000000000F0C000-memory.dmp
memory/2632-2-0x000000001BAE0000-0x000000001BBC4000-memory.dmp
memory/2632-1-0x000000001B9D0000-0x000000001B9E0000-memory.dmp
memory/4324-80-0x00000000009F0000-0x00000000009F8000-memory.dmp
memory/4836-58-0x0000000000400000-0x000000000041D000-memory.dmp
memory/4836-59-0x0000000002480000-0x0000000002701000-memory.dmp