Analysis
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max time kernel
183s -
max time network
205s -
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 03:09
Behavioral task
behavioral1
Sample
1bd0caf3cec1eeb412db45f0b242375118f7c3356e540334eeee89d70fc4d379.xls
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
1bd0caf3cec1eeb412db45f0b242375118f7c3356e540334eeee89d70fc4d379.xls
Resource
win10v2004-20220812-en
General
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Target
1bd0caf3cec1eeb412db45f0b242375118f7c3356e540334eeee89d70fc4d379.xls
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Size
260KB
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MD5
38d711ad89627fd7045b1e9f90254406
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SHA1
cc1f3800840aa1f9498c1cefb8edf3f044cce171
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SHA256
1bd0caf3cec1eeb412db45f0b242375118f7c3356e540334eeee89d70fc4d379
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SHA512
cad23fd4390d3aa271d6c0432b765f157e93616d9423848e13bbfb4aa02add44ecf2b19e5dbda1b7199228d485da72fdf1fa49603ffa9c4f5d1671bf5c09a1e1
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SSDEEP
3072:l90RCuHF9XzI4QHAawFg4KQX0Gy2jcc0lbxOK103L3FoJtXw8S:H08WHzTY1EgpQX0G3L3Y
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 1928 1580 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4872 1580 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1948 1580 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 opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
NTFS ADS 1 IoCs
Processes:
EXCEL.EXEdescription ioc process File created C:\Users\Admin\AppData\Local\Temp\29885E00\:Zone.Identifier:$DATA EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1580 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 1580 EXCEL.EXE 1580 EXCEL.EXE 1580 EXCEL.EXE 1580 EXCEL.EXE 1580 EXCEL.EXE 1580 EXCEL.EXE 1580 EXCEL.EXE 1580 EXCEL.EXE 1580 EXCEL.EXE 1580 EXCEL.EXE 1580 EXCEL.EXE 1580 EXCEL.EXE 1580 EXCEL.EXE 1580 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 1580 wrote to memory of 1928 1580 EXCEL.EXE cmd.exe PID 1580 wrote to memory of 1928 1580 EXCEL.EXE cmd.exe PID 1580 wrote to memory of 4872 1580 EXCEL.EXE cmd.exe PID 1580 wrote to memory of 4872 1580 EXCEL.EXE cmd.exe PID 1580 wrote to memory of 1948 1580 EXCEL.EXE cmd.exe PID 1580 wrote to memory of 1948 1580 EXCEL.EXE cmd.exe PID 1928 wrote to memory of 2344 1928 cmd.exe attrib.exe PID 1928 wrote to memory of 2344 1928 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\1bd0caf3cec1eeb412db45f0b242375118f7c3356e540334eeee89d70fc4d379.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 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 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 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
Loading Replay Monitor...
Downloads
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memory/1580-144-0x0000020D41DD2000-0x0000020D41DD4000-memory.dmpFilesize
8KB
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memory/1580-136-0x00007FFA45370000-0x00007FFA45380000-memory.dmpFilesize
64KB
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memory/1580-149-0x00007FFA45370000-0x00007FFA45380000-memory.dmpFilesize
64KB
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memory/1580-135-0x00007FFA45370000-0x00007FFA45380000-memory.dmpFilesize
64KB
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memory/1580-148-0x00007FFA45370000-0x00007FFA45380000-memory.dmpFilesize
64KB
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memory/1580-137-0x00007FFA42FA0000-0x00007FFA42FB0000-memory.dmpFilesize
64KB
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memory/1580-138-0x00007FFA42FA0000-0x00007FFA42FB0000-memory.dmpFilesize
64KB
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memory/1580-147-0x00007FFA45370000-0x00007FFA45380000-memory.dmpFilesize
64KB
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memory/1580-134-0x00007FFA45370000-0x00007FFA45380000-memory.dmpFilesize
64KB
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memory/1580-133-0x00007FFA45370000-0x00007FFA45380000-memory.dmpFilesize
64KB
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memory/1580-146-0x00007FFA45370000-0x00007FFA45380000-memory.dmpFilesize
64KB
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memory/1580-143-0x0000020D41DD2000-0x0000020D41DD4000-memory.dmpFilesize
8KB
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memory/1580-132-0x00007FFA45370000-0x00007FFA45380000-memory.dmpFilesize
64KB
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memory/1928-139-0x0000000000000000-mapping.dmp
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memory/1948-141-0x0000000000000000-mapping.dmp
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memory/2344-142-0x0000000000000000-mapping.dmp
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memory/4872-140-0x0000000000000000-mapping.dmp