Analysis
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max time kernel
95s -
max time network
150s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 23:06
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-588613142.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-588613142.xls
Resource
win10v200722
General
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Target
doc_pack-588613142.xls
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Size
62KB
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MD5
f624f192d150a1b1125d73d3f69949c3
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SHA1
8480bad54be42a4b07305514404b7fc65553137f
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SHA256
e4e3269537adb89d0771a276fbe223245a49c4e45d1d692911543d5d3e60eca2
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SHA512
ecbf218965b920403052c6f707db0c8ac311bad41d1f557dcf64658a842ee5315a5d28786efecf11baaf5e597687d0ab76fd46b54b660701ac3f90c602a0a729
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 1348 576 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 576 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 576 EXCEL.EXE 576 EXCEL.EXE 628 dwwin.exe 628 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE 576 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 576 wrote to memory of 1348 576 EXCEL.EXE 79 PID 576 wrote to memory of 1348 576 EXCEL.EXE 79 PID 1348 wrote to memory of 628 1348 DW20.EXE 80 PID 1348 wrote to memory of 628 1348 DW20.EXE 80
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-588613142.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:576 -
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 47482⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1348 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47483⤵
- Suspicious behavior: EnumeratesProcesses
PID:628
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