Analysis
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max time kernel
80s -
max time network
152s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
19/10/2020, 22:57
Static task
static1
Behavioral task
behavioral1
Sample
document-1073498911.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
document-1073498911.xls
Resource
win10v200722
General
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Target
document-1073498911.xls
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Size
426KB
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MD5
0a942308e7975b7c8f6f55fde4ac8995
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SHA1
047da19710a83b40815fd18cba059192ab08428a
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SHA256
09a7b752b89cb74816f941456427b459c67dde969eeb469a858dbfead9ddccb5
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SHA512
e2077e1a997ec8f38c4da337378b2b7d548e82768829f192b1c930434484fcea77b57091d6b882bc65439be3f54bfb66981fa6a2b8ece0a09c745c59f556e706
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 2956 3740 DW20.EXE 65 -
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 3740 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3740 EXCEL.EXE 3740 EXCEL.EXE 2880 dwwin.exe 2880 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3740 EXCEL.EXE 3740 EXCEL.EXE 3740 EXCEL.EXE 3740 EXCEL.EXE 3740 EXCEL.EXE 3740 EXCEL.EXE 3740 EXCEL.EXE 3740 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3740 wrote to memory of 2956 3740 EXCEL.EXE 78 PID 3740 wrote to memory of 2956 3740 EXCEL.EXE 78 PID 2956 wrote to memory of 2880 2956 DW20.EXE 79 PID 2956 wrote to memory of 2880 2956 DW20.EXE 79
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\document-1073498911.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:3740 -
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 47562⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2956 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47563⤵
- Suspicious behavior: EnumeratesProcesses
PID:2880
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