Analysis
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max time kernel
73s -
max time network
135s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 23:08
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-602014108.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-602014108.xls
Resource
win10v200722
General
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Target
doc_pack-602014108.xls
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Size
62KB
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MD5
a2d40ef00b5e53b5d7b2406f0625cdaf
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SHA1
28f3c2383678ef41bbf273cc2780b370fb31e862
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SHA256
2ee61b25227ca71de4079882ba7e6750dfddcee9c2b864aeb53d8b16d61b8d9e
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SHA512
789b05eb1c0a452220725be2d606864ca64d5879563692cb8e38e27a4073e0e8c236cb8adaba9ac31f3131a5e8e7566066406f99f9b8eaa905bb6bd72a349b98
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 2272 3924 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 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
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 3924 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3924 EXCEL.EXE 3924 EXCEL.EXE 940 dwwin.exe 940 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3924 EXCEL.EXE 3924 EXCEL.EXE 3924 EXCEL.EXE 3924 EXCEL.EXE 3924 EXCEL.EXE 3924 EXCEL.EXE 3924 EXCEL.EXE 3924 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3924 wrote to memory of 2272 3924 EXCEL.EXE 78 PID 3924 wrote to memory of 2272 3924 EXCEL.EXE 78 PID 2272 wrote to memory of 940 2272 DW20.EXE 79 PID 2272 wrote to memory of 940 2272 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\doc_pack-602014108.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:3924 -
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:2272 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46483⤵
- Suspicious behavior: EnumeratesProcesses
PID:940
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