Analysis
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max time kernel
138s -
max time network
155s -
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
6443eaa2c7ec9f03cb6545753effebf8b2b5e18be3b11f1b69332dac6573876c.xls
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
6443eaa2c7ec9f03cb6545753effebf8b2b5e18be3b11f1b69332dac6573876c.xls
Resource
win10v2004-20220812-en
General
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Target
6443eaa2c7ec9f03cb6545753effebf8b2b5e18be3b11f1b69332dac6573876c.xls
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Size
163KB
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MD5
93266df4948c2d1c93c5b1b581d009b2
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SHA1
a7a9236d7427953d0faf61dbc49ee29c45c1f354
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SHA256
6443eaa2c7ec9f03cb6545753effebf8b2b5e18be3b11f1b69332dac6573876c
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SHA512
234d3fb9362f499f6d41b4d29d06e5918060403eb82da7bd3dbb4718341befd024bb0727da4a96e32f318dca9f6d5c09456ab82d7321febc6e0cf18e974c9a1a
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SSDEEP
3072:QauLUEbdhZIcaOYMGyDPJi+IzUkGHmwFgpPnLTNYNVLSArh3u+BQVGXBI6GNhKXl:fMGyDPJi+IzUkGHsos+B3
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 4516 4204 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3164 4204 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4388 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 -
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 4516 4204 EXCEL.EXE cmd.exe PID 4204 wrote to memory of 4516 4204 EXCEL.EXE cmd.exe PID 4204 wrote to memory of 3164 4204 EXCEL.EXE cmd.exe PID 4204 wrote to memory of 3164 4204 EXCEL.EXE cmd.exe PID 4204 wrote to memory of 4388 4204 EXCEL.EXE cmd.exe PID 4204 wrote to memory of 4388 4204 EXCEL.EXE cmd.exe PID 4516 wrote to memory of 3408 4516 cmd.exe attrib.exe PID 4516 wrote to memory of 3408 4516 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\6443eaa2c7ec9f03cb6545753effebf8b2b5e18be3b11f1b69332dac6573876c.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
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Downloads
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memory/3164-140-0x0000000000000000-mapping.dmp
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memory/3408-142-0x0000000000000000-mapping.dmp
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memory/4204-135-0x00007FFBCA370000-0x00007FFBCA380000-memory.dmpFilesize
64KB
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memory/4204-132-0x00007FFBCA370000-0x00007FFBCA380000-memory.dmpFilesize
64KB
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memory/4204-136-0x00007FFBCA370000-0x00007FFBCA380000-memory.dmpFilesize
64KB
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memory/4204-137-0x00007FFBC7A10000-0x00007FFBC7A20000-memory.dmpFilesize
64KB
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memory/4204-138-0x00007FFBC7A10000-0x00007FFBC7A20000-memory.dmpFilesize
64KB
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memory/4204-134-0x00007FFBCA370000-0x00007FFBCA380000-memory.dmpFilesize
64KB
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memory/4204-133-0x00007FFBCA370000-0x00007FFBCA380000-memory.dmpFilesize
64KB
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memory/4204-144-0x00007FFBCA370000-0x00007FFBCA380000-memory.dmpFilesize
64KB
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memory/4204-145-0x00007FFBCA370000-0x00007FFBCA380000-memory.dmpFilesize
64KB
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memory/4204-146-0x00007FFBCA370000-0x00007FFBCA380000-memory.dmpFilesize
64KB
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memory/4204-147-0x00007FFBCA370000-0x00007FFBCA380000-memory.dmpFilesize
64KB
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memory/4388-141-0x0000000000000000-mapping.dmp
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memory/4516-139-0x0000000000000000-mapping.dmp