Analysis
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max time kernel
80s -
max time network
146s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1320267966.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
document-1320267966.xls
Resource
win10v200722
General
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Target
document-1320267966.xls
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Size
426KB
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MD5
5b7ded2dbafbb64c055876e197123aef
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SHA1
8bb6842356b063e538b77819f8fefdd3fda47c09
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SHA256
dd846b24359076173e805afc1c1552426f016cfb5520bd0a281db3cc2ee70795
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SHA512
41b1249e04dab5057c5e8f2868b1d331733ec4e591c3b4ea91a72958ebde967abf0274c67c2697ef2c98f40d99388966412eb7c8b432201632cb9a9cb5d4c4d3
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 4048 648 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 648 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 648 EXCEL.EXE 648 EXCEL.EXE 2348 dwwin.exe 2348 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 648 EXCEL.EXE 648 EXCEL.EXE 648 EXCEL.EXE 648 EXCEL.EXE 648 EXCEL.EXE 648 EXCEL.EXE 648 EXCEL.EXE 648 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 648 wrote to memory of 4048 648 EXCEL.EXE 78 PID 648 wrote to memory of 4048 648 EXCEL.EXE 78 PID 4048 wrote to memory of 2348 4048 DW20.EXE 79 PID 4048 wrote to memory of 2348 4048 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-1320267966.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:648 -
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 46482⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:4048 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46483⤵
- Suspicious behavior: EnumeratesProcesses
PID:2348
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