Analysis
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max time kernel
138s -
max time network
140s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 23:07
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-702340769.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-702340769.xls
Resource
win10
General
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Target
doc_pack-702340769.xls
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Size
62KB
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MD5
6e0840d54bdd7fa0d20587232f220e9b
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SHA1
adec9de4f46bb9fa8f2144f7903b671770627130
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SHA256
7604a5067d9012c73a527e09592a66c5e3fb1ce69d1233bba0d7ded3a6bf0410
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SHA512
5aabc097f172ac28e5d1a6bb3985bfd2b77f1adab91ac54a8f6324681ec877de9b7804b699f207535e081242fc21e2ab07cd8bcbe770abf504b9d37fa00e0ae4
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 1740 3832 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 3832 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3832 EXCEL.EXE 3832 EXCEL.EXE 1776 dwwin.exe 1776 dwwin.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3832 EXCEL.EXE 3832 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE 3832 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3832 wrote to memory of 1740 3832 EXCEL.EXE 76 PID 3832 wrote to memory of 1740 3832 EXCEL.EXE 76 PID 1740 wrote to memory of 1776 1740 DW20.EXE 77 PID 1740 wrote to memory of 1776 1740 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-702340769.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3832 -
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 46242⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46243⤵
- Suspicious behavior: EnumeratesProcesses
PID:1776
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