Analysis
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max time kernel
9s -
max time network
135s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 23:12
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-633171833.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-633171833.xls
Resource
win10
General
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Target
doc_pack-633171833.xls
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Size
62KB
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MD5
9c58f720b180e0af44747b9830a549dc
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SHA1
24f07332f66894e6875bc2e43c51ca194b5b92df
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SHA256
51cee8e44291bd8c4ee1f4f356e6871703ffb9ebc1006233504f583f627fe10b
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SHA512
cb3aa8e16b7de7af665d84bf1410ccdf38354c43f96e6a7503299547a33ab9e3622e2bbde71264bf87c46be02c2d6bd2cf979f2bb65609c3136de08667d13378
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 3848 3852 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 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 3852 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3852 EXCEL.EXE 3852 EXCEL.EXE 2072 dwwin.exe 2072 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3852 EXCEL.EXE 3852 EXCEL.EXE 3852 EXCEL.EXE 3852 EXCEL.EXE 3852 EXCEL.EXE 3852 EXCEL.EXE 3852 EXCEL.EXE 3852 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3852 wrote to memory of 3848 3852 EXCEL.EXE 76 PID 3852 wrote to memory of 3848 3852 EXCEL.EXE 76 PID 3848 wrote to memory of 2072 3848 DW20.EXE 77 PID 3848 wrote to memory of 2072 3848 DW20.EXE 77
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-633171833.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:3852 -
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 44162⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3848 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44163⤵
- Suspicious behavior: EnumeratesProcesses
PID:2072
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