Analysis
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max time kernel
11s -
max time network
132s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 23:12
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-58573999.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-58573999.xls
Resource
win10
General
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Target
doc_pack-58573999.xls
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Size
62KB
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MD5
f4ed6231de35bbe5c92804f37ea6fcf0
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SHA1
6d71cd542aef65cd1a534364ea1765534210be84
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SHA256
e7f1b70d175e001e2afd453841146f3f224c8b3e155743d723684a6a4a3fce66
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SHA512
a2c77671d831ae067fbc96cd1e0da20409569b57115ae9110b8ecf9362501dba3aca3c90a20136b07ad5e30f16437e2a7851a211134da0b96a85e81bef9b76e0
Malware Config
Signatures
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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.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3512 3836 DW20.EXE 66 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
description 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
pid Process 3836 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3836 EXCEL.EXE 3836 EXCEL.EXE 3608 dwwin.exe 3608 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3836 EXCEL.EXE 3836 EXCEL.EXE 3836 EXCEL.EXE 3836 EXCEL.EXE 3836 EXCEL.EXE 3836 EXCEL.EXE 3836 EXCEL.EXE 3836 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3836 wrote to memory of 3512 3836 EXCEL.EXE 77 PID 3836 wrote to memory of 3512 3836 EXCEL.EXE 77 PID 3512 wrote to memory of 3608 3512 DW20.EXE 78 PID 3512 wrote to memory of 3608 3512 DW20.EXE 78
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\doc_pack-58573999.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3836 -
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 44442⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3512 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44443⤵
- Suspicious behavior: EnumeratesProcesses
PID:3608
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