Analysis
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max time kernel
8s -
max time network
129s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 23:09
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-646092147.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-646092147.xls
Resource
win10
General
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Target
doc_pack-646092147.xls
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Size
62KB
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MD5
247a2445928dd11899f08c55944aa3a2
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SHA1
a19d61a1da78c4fe3644fe403919083e2286d22c
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SHA256
77958f5af99cee4ddad0673e76cec9941775f2c4586a0a6bfada9f5d2b242157
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SHA512
0909de9c596f739cb45308c3c3463d8f421655f3e22c8a6224391e08e6d5175abb8c9cef6e4974a3482704c157f3fe2a8386264b68a12e65623f8f1c1be52173
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 2672 3920 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 3920 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3920 EXCEL.EXE 3920 EXCEL.EXE 2864 dwwin.exe 2864 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3920 wrote to memory of 2672 3920 EXCEL.EXE 76 PID 3920 wrote to memory of 2672 3920 EXCEL.EXE 76 PID 2672 wrote to memory of 2864 2672 DW20.EXE 77 PID 2672 wrote to memory of 2864 2672 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-646092147.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:3920 -
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 44242⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2672 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44243⤵
- Suspicious behavior: EnumeratesProcesses
PID:2864
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