Analysis
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max time kernel
9s -
max time network
135s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:23
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-333667326.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-333667326.xls
Resource
win10
General
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Target
doc_pack-333667326.xls
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Size
62KB
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MD5
2d444b3ebaf42a38ba881ba231da3a26
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SHA1
be06b0d584481e9022352e6415cf649a0b18dc3f
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SHA256
2883f1bfdb4f93ea349b7df88fa5745f81b24091c30e2a103a4f67792789190d
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SHA512
9333c185439263e7811150708183913234301c2c0ffb3e8a40dd7c005c41f36287ab4befc60f50d3d17ef861f81c08fb9dfb6f602352cd7707b593c4aeb663aa
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 1672 3100 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 3100 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3100 EXCEL.EXE 3100 EXCEL.EXE 1816 dwwin.exe 1816 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3100 EXCEL.EXE 3100 EXCEL.EXE 3100 EXCEL.EXE 3100 EXCEL.EXE 3100 EXCEL.EXE 3100 EXCEL.EXE 3100 EXCEL.EXE 3100 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3100 wrote to memory of 1672 3100 EXCEL.EXE 77 PID 3100 wrote to memory of 1672 3100 EXCEL.EXE 77 PID 1672 wrote to memory of 1816 1672 DW20.EXE 78 PID 1672 wrote to memory of 1816 1672 DW20.EXE 78
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-333667326.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:3100 -
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 44842⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1672 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44843⤵
- Suspicious behavior: EnumeratesProcesses
PID:1816
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