Analysis
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max time kernel
22s -
max time network
137s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 22:25
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-322116342.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-322116342.xls
Resource
win10v200722
General
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Target
doc_pack-322116342.xls
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Size
62KB
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MD5
4bb11945757500077ecf3998ff4a122f
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SHA1
5455c14814f410ccfaf3663afca3316b87beb847
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SHA256
1b6c885ab715d524b1d441bc94490f083895b404dc07f3fd7223a79d7fba74e2
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SHA512
8e23e7d03740f22ad7bed7d7d4978bec8aab340cc6c29660a133d1682ecb733637c85167de5cc545b89b6334781ecf9fad9ff22e6fe4b5223c61fba8a69517bb
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 2596 3060 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 3060 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3060 EXCEL.EXE 3060 EXCEL.EXE 2620 dwwin.exe 2620 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3060 EXCEL.EXE 3060 EXCEL.EXE 3060 EXCEL.EXE 3060 EXCEL.EXE 3060 EXCEL.EXE 3060 EXCEL.EXE 3060 EXCEL.EXE 3060 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3060 wrote to memory of 2596 3060 EXCEL.EXE 73 PID 3060 wrote to memory of 2596 3060 EXCEL.EXE 73 PID 2596 wrote to memory of 2620 2596 DW20.EXE 74 PID 2596 wrote to memory of 2620 2596 DW20.EXE 74
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-322116342.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:3060 -
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 44802⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2596 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44803⤵
- Suspicious behavior: EnumeratesProcesses
PID:2620
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