Analysis
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max time kernel
10s -
max time network
131s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 23:07
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-694290980.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-694290980.xls
Resource
win10
General
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Target
doc_pack-694290980.xls
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Size
62KB
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MD5
9cc27bdf23fcc0ae1e298b61f481bbe5
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SHA1
e8abbf1dcc6ce84204fb7b191072794d5c8a00cb
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SHA256
2c3d1adbd77046dd2842c3fe5a495751ba2bd8600b32e77ac68afa616d6bf9aa
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SHA512
957f88b2e1120744c00260afafeb50b836b261384bccb805cd4984a44e08755cd513df2d43c9600b1f59c3be7459b5967273f8f34bb4cd53c499ddd32088aa15
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 2892 3884 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 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 3884 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3884 EXCEL.EXE 3884 EXCEL.EXE 2040 dwwin.exe 2040 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3884 EXCEL.EXE 3884 EXCEL.EXE 3884 EXCEL.EXE 3884 EXCEL.EXE 3884 EXCEL.EXE 3884 EXCEL.EXE 3884 EXCEL.EXE 3884 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3884 wrote to memory of 2892 3884 EXCEL.EXE 76 PID 3884 wrote to memory of 2892 3884 EXCEL.EXE 76 PID 2892 wrote to memory of 2040 2892 DW20.EXE 77 PID 2892 wrote to memory of 2040 2892 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-694290980.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:3884 -
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 44522⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2892 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44523⤵
- Suspicious behavior: EnumeratesProcesses
PID:2040
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