Analysis
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max time kernel
99s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 19:25
Behavioral task
behavioral1
Sample
566b22ef9e58ca6066a8d54895f2aad05caf3522f1d31320360118313a45b3d6.xls
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
566b22ef9e58ca6066a8d54895f2aad05caf3522f1d31320360118313a45b3d6.xls
Resource
win10v2004-20220901-en
General
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Target
566b22ef9e58ca6066a8d54895f2aad05caf3522f1d31320360118313a45b3d6.xls
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Size
102KB
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MD5
93783f383be84ba8c73478fc0cc425c5
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SHA1
0a14ba971d5d3d2db445f7c29b1660b8f70bcd1f
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SHA256
566b22ef9e58ca6066a8d54895f2aad05caf3522f1d31320360118313a45b3d6
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SHA512
ddf14ed1b7d1b88feb8ad82e939e03897ca787a56cc4fc11a77763eaa7e48fc58e09b6f0aee570f4985782c442244ad508b632977d5ebef6f9ed0d09cf20c7d1
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SSDEEP
1536:XWWWSkv4ct4N54WVbrzlS7ITkR62lGM88wcJtXwRHM2M/MCUdL:6WVbrz47ITk9tjDJtXwC5kPdL
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 2232 4204 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4812 4204 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1060 4204 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 -
NTFS ADS 1 IoCs
Processes:
EXCEL.EXEdescription ioc process File created C:\Users\Admin\AppData\Local\Temp\3AE65E00\:Zone.Identifier:$DATA EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 4204 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 4204 EXCEL.EXE 4204 EXCEL.EXE 4204 EXCEL.EXE 4204 EXCEL.EXE 4204 EXCEL.EXE 4204 EXCEL.EXE 4204 EXCEL.EXE 4204 EXCEL.EXE 4204 EXCEL.EXE 4204 EXCEL.EXE 4204 EXCEL.EXE 4204 EXCEL.EXE 4204 EXCEL.EXE 4204 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 4204 wrote to memory of 4812 4204 EXCEL.EXE cmd.exe PID 4204 wrote to memory of 4812 4204 EXCEL.EXE cmd.exe PID 4204 wrote to memory of 2232 4204 EXCEL.EXE cmd.exe PID 4204 wrote to memory of 2232 4204 EXCEL.EXE cmd.exe PID 4204 wrote to memory of 1060 4204 EXCEL.EXE cmd.exe PID 4204 wrote to memory of 1060 4204 EXCEL.EXE cmd.exe PID 4812 wrote to memory of 1864 4812 cmd.exe attrib.exe PID 4812 wrote to memory of 1864 4812 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\566b22ef9e58ca6066a8d54895f2aad05caf3522f1d31320360118313a45b3d6.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- 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 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
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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
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1060-141-0x0000000000000000-mapping.dmp
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memory/1864-142-0x0000000000000000-mapping.dmp
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memory/2232-140-0x0000000000000000-mapping.dmp
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memory/4204-135-0x00007FF813650000-0x00007FF813660000-memory.dmpFilesize
64KB
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memory/4204-136-0x00007FF813650000-0x00007FF813660000-memory.dmpFilesize
64KB
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memory/4204-137-0x00007FF811570000-0x00007FF811580000-memory.dmpFilesize
64KB
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memory/4204-138-0x00007FF811570000-0x00007FF811580000-memory.dmpFilesize
64KB
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memory/4204-132-0x00007FF813650000-0x00007FF813660000-memory.dmpFilesize
64KB
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memory/4204-133-0x00007FF813650000-0x00007FF813660000-memory.dmpFilesize
64KB
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memory/4204-134-0x00007FF813650000-0x00007FF813660000-memory.dmpFilesize
64KB
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memory/4204-144-0x00007FF813650000-0x00007FF813660000-memory.dmpFilesize
64KB
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memory/4204-145-0x00007FF813650000-0x00007FF813660000-memory.dmpFilesize
64KB
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memory/4204-147-0x00007FF813650000-0x00007FF813660000-memory.dmpFilesize
64KB
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memory/4204-146-0x00007FF813650000-0x00007FF813660000-memory.dmpFilesize
64KB
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memory/4812-139-0x0000000000000000-mapping.dmp