Analysis
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max time kernel
139s -
max time network
142s -
platform
windows10_x64 -
resource
win10v200430 -
submitted
10-07-2020 18:08
Static task
static1
Behavioral task
behavioral1
Sample
file_124672.xls
Resource
win7
Behavioral task
behavioral2
Sample
file_124672.xls
Resource
win10v200430
General
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Target
file_124672.xls
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Size
295KB
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MD5
393ded3846127150dc6b7dbd2dc32082
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SHA1
a2b57df48dd77bbd46718ad9d4bc82fc710984aa
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SHA256
3f56eaa38eace04eaaee759ab6d855ef9555f66d472106099a42ab31c3f746ec
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SHA512
e014c290ea859e204f877e67e0bc59e0f065b7515b4655cb3b9708095467cfb14a95dcc36872acf09bf92c8d21f5874b842b10ec4986dac8ca4ba1db3ebb3012
Malware Config
Signatures
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Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
EXCEL.EXEpid process 1616 EXCEL.EXE 1616 EXCEL.EXE 1616 EXCEL.EXE 1616 EXCEL.EXE 1616 EXCEL.EXE 1616 EXCEL.EXE 1616 EXCEL.EXE 1616 EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1616 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
EXCEL.EXEdwwin.exepid process 1616 EXCEL.EXE 1616 EXCEL.EXE 4072 dwwin.exe 4072 dwwin.exe -
Process spawned suspicious child process 1 IoCs
This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.
Processes:
DW20.EXEdescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3728 1616 DW20.EXE EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEDW20.EXEdescription pid process target process PID 1616 wrote to memory of 3728 1616 EXCEL.EXE DW20.EXE PID 1616 wrote to memory of 3728 1616 EXCEL.EXE DW20.EXE PID 3728 wrote to memory of 4072 3728 DW20.EXE dwwin.exe PID 3728 wrote to memory of 4072 3728 DW20.EXE dwwin.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
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\file_124672.xls"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
PID:1616 -
C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE"C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 45482⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3728 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 45483⤵
- Suspicious behavior: EnumeratesProcesses
PID:4072
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