Analysis
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max time kernel
125s -
max time network
147s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 23:07
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-646732639.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-646732639.xls
Resource
win10v200722
General
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Target
doc_pack-646732639.xls
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Size
62KB
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MD5
56913ea5f3ff05eca5253b196fc03044
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SHA1
afac95f03fdd156f6fa9f46758bb6f07dea34553
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SHA256
6e0497f338745250bd98467d4195e64d72394b8110be060a5341a29b560d73cc
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SHA512
564738ec6c36967e8e6ba425fc1e3efe1dcf4488d115c64d8a2c866ec04e98bb03c3c42d65ee4d523e35ceec756360293e3a5bc3ca049b93cbc9851a40605fb8
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 1360 3488 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 3488 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3488 EXCEL.EXE 3488 EXCEL.EXE 1608 dwwin.exe 1608 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3488 EXCEL.EXE 3488 EXCEL.EXE 3488 EXCEL.EXE 3488 EXCEL.EXE 3488 EXCEL.EXE 3488 EXCEL.EXE 3488 EXCEL.EXE 3488 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3488 wrote to memory of 1360 3488 EXCEL.EXE 79 PID 3488 wrote to memory of 1360 3488 EXCEL.EXE 79 PID 1360 wrote to memory of 1608 1360 DW20.EXE 80 PID 1360 wrote to memory of 1608 1360 DW20.EXE 80
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-646732639.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:3488 -
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 47082⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1360 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47083⤵
- Suspicious behavior: EnumeratesProcesses
PID:1608
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