Analysis
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max time kernel
111s -
max time network
140s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 23:07
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-71042131.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-71042131.xls
Resource
win10
General
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Target
doc_pack-71042131.xls
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Size
62KB
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MD5
da3716e0d7fee38335e7b351d4af3f2a
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SHA1
eca45dd1224dafff848e632a709403def560529d
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SHA256
47d8354acf09eb8dd0740253ccc33acf16132639d849fa98e43b558625e27032
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SHA512
569783b2f6f7bcd7c14a67acae16063500b6231c4135dc12fc6c3ea7f50c5b864b4d8144de7bb814bde85d4990d735c1747af5c75fe1c22602c8e2aa014dd734
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 2744 3404 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\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3404 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3404 EXCEL.EXE 3404 EXCEL.EXE 2972 dwwin.exe 2972 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3404 wrote to memory of 2744 3404 EXCEL.EXE 76 PID 3404 wrote to memory of 2744 3404 EXCEL.EXE 76 PID 2744 wrote to memory of 2972 2744 DW20.EXE 77 PID 2744 wrote to memory of 2972 2744 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-71042131.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:3404 -
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 45282⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2744 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 45283⤵
- Suspicious behavior: EnumeratesProcesses
PID:2972
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