Analysis
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max time kernel
116s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
26-11-2022 18:39
Behavioral task
behavioral1
Sample
8deef7f3fd6e2cd3f2c2157aa0e4852afdc936ec5e4ba74958d566df7140f123.xls
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
8deef7f3fd6e2cd3f2c2157aa0e4852afdc936ec5e4ba74958d566df7140f123.xls
Resource
win10v2004-20220812-en
General
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Target
8deef7f3fd6e2cd3f2c2157aa0e4852afdc936ec5e4ba74958d566df7140f123.xls
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Size
80KB
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MD5
dca7db19ef4ced6b37cbbfd863dfe262
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SHA1
09236c00aa9215dfbf4dbd5434f8a94a98d460b7
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SHA256
8deef7f3fd6e2cd3f2c2157aa0e4852afdc936ec5e4ba74958d566df7140f123
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SHA512
4ca5ab2728d05fcc2f293cd7aa1901f2ceb134d589d3d68042dc366ee051fd9f432a7d82c6d3c1929eedcf6c1c46ac7311bb7eef5ddacbbd5abdb8aaf40c3fa1
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SSDEEP
1536:5eeeqi17DS2jcc0lbxOvTgZBuITWWt2XKCZCt1:Y82jcc0lbxOrhISalt1
Malware Config
Signatures
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Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
cmd.execmd.execmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4480 4388 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2636 4388 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2040 4388 cmd.exe EXCEL.EXE -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 4388 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 4388 EXCEL.EXE 4388 EXCEL.EXE 4388 EXCEL.EXE 4388 EXCEL.EXE 4388 EXCEL.EXE 4388 EXCEL.EXE 4388 EXCEL.EXE 4388 EXCEL.EXE 4388 EXCEL.EXE 4388 EXCEL.EXE 4388 EXCEL.EXE 4388 EXCEL.EXE 4388 EXCEL.EXE 4388 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 4388 wrote to memory of 2040 4388 EXCEL.EXE cmd.exe PID 4388 wrote to memory of 2040 4388 EXCEL.EXE cmd.exe PID 4388 wrote to memory of 2636 4388 EXCEL.EXE cmd.exe PID 4388 wrote to memory of 2636 4388 EXCEL.EXE cmd.exe PID 4388 wrote to memory of 4480 4388 EXCEL.EXE cmd.exe PID 4388 wrote to memory of 4480 4388 EXCEL.EXE cmd.exe PID 2040 wrote to memory of 3348 2040 cmd.exe attrib.exe PID 2040 wrote to memory of 3348 2040 cmd.exe attrib.exe -
Views/modifies file attributes 1 TTPs 1 IoCs
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\8deef7f3fd6e2cd3f2c2157aa0e4852afdc936ec5e4ba74958d566df7140f123.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\attrib.exeattrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"3⤵
- Views/modifies file attributes
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/2040-139-0x0000000000000000-mapping.dmp
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memory/2636-140-0x0000000000000000-mapping.dmp
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memory/3348-142-0x0000000000000000-mapping.dmp
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memory/4388-135-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/4388-136-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/4388-137-0x00007FFDBBF80000-0x00007FFDBBF90000-memory.dmpFilesize
64KB
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memory/4388-138-0x00007FFDBBF80000-0x00007FFDBBF90000-memory.dmpFilesize
64KB
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memory/4388-132-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/4388-134-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/4388-133-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/4388-144-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/4388-145-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/4388-146-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/4388-147-0x00007FFDBE670000-0x00007FFDBE680000-memory.dmpFilesize
64KB
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memory/4480-141-0x0000000000000000-mapping.dmp