Analysis
- user interaction
yes - max time kernel
16s - platform
windows11-21h2_x64 - resource
win11-20260130-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
- 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 3 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PEEKABOO.exe"C:\Users\Admin\AppData\Local\Temp\PEEKABOO.exe"1⤵
- 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⤵
- 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⤵
- 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 0x00000000000004EC 0x00000000000004E81⤵
- Suspicious use of AdjustPrivilegeToken
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/3164-67-0x000001B63DD90000-0x000001B63DE3F000-memory.dmp
memory/3352-58-0x0000000000400000-0x000000000041D000-memory.dmp
memory/3352-38-0x0000000000406000-0x0000000000407000-memory.dmp
memory/3352-59-0x0000000000AD0000-0x0000000000BAF000-memory.dmp
memory/4084-90-0x0000000000980000-0x0000000000988000-memory.dmp
memory/4172-42-0x0000000005530000-0x0000000005AD6000-memory.dmp
memory/4172-43-0x0000000004F80000-0x0000000005012000-memory.dmp
memory/4172-44-0x0000000004F20000-0x0000000004F2A000-memory.dmp
memory/4172-41-0x0000000000370000-0x0000000000428000-memory.dmp
memory/4172-57-0x0000000004D90000-0x0000000004E12000-memory.dmp
memory/4172-56-0x0000000000EB0000-0x0000000000F8F000-memory.dmp
memory/4320-0-0x0000000000EC0000-0x0000000000FAC000-memory.dmp
memory/4320-40-0x000000001BE00000-0x000000001BEAF000-memory.dmp
memory/4320-39-0x00000000016D0000-0x00000000016DC000-memory.dmp
memory/4320-2-0x000000001BD20000-0x000000001BE04000-memory.dmp
memory/4320-1-0x000000001BD10000-0x000000001BD20000-memory.dmp
memory/4700-55-0x000000001B250000-0x000000001B2FF000-memory.dmp
memory/4700-64-0x0000000000C40000-0x0000000000C4C000-memory.dmp
memory/4700-65-0x000000001B250000-0x000000001B2FF000-memory.dmp
memory/4700-54-0x0000000000C40000-0x0000000000C4C000-memory.dmp
memory/4700-28-0x0000000000500000-0x000000000053A000-memory.dmp
memory/5600-66-0x0000000000700000-0x0000000000746000-memory.dmp
memory/5600-89-0x000000001B2A0000-0x000000001B34F000-memory.dmp
memory/5600-88-0x0000000000F60000-0x0000000000F6C000-memory.dmp