Analysis
- max time kernel
101s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
11/11/2024, 01:48
General
- Target a91eefde670b356418c08ecddb0f53eca9ff20a7a7475354d576a4de16b9ba17.exe
- Size 1.3MB
- Sample241111-b78d1szcmp
- SHA256 a91eefde670b356418c08ecddb0f53eca9ff20a7a7475354d576a4de16b9ba17
Malware Config
Signatures
- 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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Checks processor information in registry 2 TTPs 6 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 6 IoCs
- Modifies registry class 5 IoCs
- Suspicious behavior: AddClipboardFormatListener 2 IoCs
- Suspicious use of SetWindowsHookEx 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a91eefde670b356418c08ecddb0f53eca9ff20a7a7475354d576a4de16b9ba17.exe"C:\Users\Admin\AppData\Local\Temp\a91eefde670b356418c08ecddb0f53eca9ff20a7a7475354d576a4de16b9ba17.exe"1⤵
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of SetWindowsHookEx
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
E2C6CBAF0AF08CF203BA74BF0D0AB6D5_6372E0472AFF76BB926C97818BC773B9
E2C6CBAF0AF08CF203BA74BF0D0AB6D5_6372E0472AFF76BB926C97818BC773B9
C7F2888C-5D63-464A-B814-21B9CE7E0695
excel.exe.db-wal
089d66ba04a8cec4bdc5267f42f39cf84278bb67.tbres
49dbe2955480c7f6ef8cec9c4320c9868d9293fd.tbres
isopenning.xlsm
~QVVUXIMP5.xlsm
~QVVUXIMP5.xlsm.pro3gs
local excel2exe.ini
memory/4240-26-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-17-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-19-0x00007FFD2C550000-0x00007FFD2C560000-memory.dmp
memory/4240-14-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-20-0x00007FFD2C550000-0x00007FFD2C560000-memory.dmp
memory/4240-21-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-22-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-25-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-7-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp
memory/4240-24-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-23-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-18-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-16-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-15-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-13-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-12-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-10-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp
memory/4240-91-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp
memory/4240-90-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp
memory/4240-89-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp
memory/4240-88-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp
memory/4240-92-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp
memory/4240-11-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp
memory/4240-9-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp
memory/4240-8-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp
memory/4240-6-0x00007FFD6E98D000-0x00007FFD6E98E000-memory.dmp