Analysis
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max time kernel
189s -
max time network
202s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
27-11-2022 19:58
Behavioral task
behavioral1
Sample
ɽи¼ùԱ.xls
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
ɽи¼ùԱ.xls
Resource
win10v2004-20221111-en
General
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Target
ɽи¼ùԱ.xls
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Size
87KB
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MD5
e8d103a9aedae5e4fa29c442c0688c44
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SHA1
c4ccc7fe49fc8597c5d07b00725ddc6d64d0246e
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SHA256
733646f77e4d6fa78aa78ba0df7cc16e5716ac549775acc3340c3b25de2e6b48
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SHA512
a9c543dc18de680ac7941621098e29014f5a5ab437f7981047998108f8e81edbf2bc285436ea2196502dc6d1c1e4dbfb94dc67b7e6c368d1d8735381a46c6356
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SSDEEP
1536:OoooEvG/awH0U1ic7U2jcc0lbxOvTgZgoMY7nJdJoOd7cJKXweb82:iGkQ7U2jcc0lbxOr4tAJKXwk82
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 2876 3016 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4924 3016 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1356 3016 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 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 3016 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 9 IoCs
Processes:
EXCEL.EXEpid process 3016 EXCEL.EXE 3016 EXCEL.EXE 3016 EXCEL.EXE 3016 EXCEL.EXE 3016 EXCEL.EXE 3016 EXCEL.EXE 3016 EXCEL.EXE 3016 EXCEL.EXE 3016 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 3016 wrote to memory of 2876 3016 EXCEL.EXE cmd.exe PID 3016 wrote to memory of 2876 3016 EXCEL.EXE cmd.exe PID 3016 wrote to memory of 4924 3016 EXCEL.EXE cmd.exe PID 3016 wrote to memory of 4924 3016 EXCEL.EXE cmd.exe PID 3016 wrote to memory of 1356 3016 EXCEL.EXE cmd.exe PID 3016 wrote to memory of 1356 3016 EXCEL.EXE cmd.exe PID 2876 wrote to memory of 1244 2876 cmd.exe attrib.exe PID 2876 wrote to memory of 1244 2876 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\ɽи¼ùԱ.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 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/1244-142-0x0000000000000000-mapping.dmp
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memory/1356-141-0x0000000000000000-mapping.dmp
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memory/2876-139-0x0000000000000000-mapping.dmp
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memory/3016-132-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmpFilesize
64KB
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memory/3016-134-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmpFilesize
64KB
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memory/3016-133-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmpFilesize
64KB
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memory/3016-135-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmpFilesize
64KB
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memory/3016-136-0x00007FF97CD10000-0x00007FF97CD20000-memory.dmpFilesize
64KB
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memory/3016-137-0x00007FF97AC00000-0x00007FF97AC10000-memory.dmpFilesize
64KB
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memory/3016-138-0x00007FF97AC00000-0x00007FF97AC10000-memory.dmpFilesize
64KB
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memory/4924-140-0x0000000000000000-mapping.dmp