Analysis
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max time kernel
145s -
max time network
149s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:25
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-354296473.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-354296473.xls
Resource
win10
General
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Target
doc_pack-354296473.xls
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Size
62KB
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MD5
8c36cc8cf27dee6ea63385fb548ff700
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SHA1
0bffcb1f5715af2295994afc0ce719bc9a5622b6
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SHA256
ac48821ef871297003b40856e530e47f6d4f5935aed8dde6a6736850a98f9d49
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SHA512
105d63359179ca3a6d88c33a7acb2f931d890eb179fa1de26cc9d10aa587e60e6a6a08cea03037c44b4a4def5403e7ca8c1078b364f27f93780488e30585dc31
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 2804 3404 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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 3404 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3404 EXCEL.EXE 3404 EXCEL.EXE 3648 dwwin.exe 3648 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3404 wrote to memory of 2804 3404 EXCEL.EXE 76 PID 3404 wrote to memory of 2804 3404 EXCEL.EXE 76 PID 2804 wrote to memory of 3648 2804 DW20.EXE 77 PID 2804 wrote to memory of 3648 2804 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-354296473.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:3404 -
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 44282⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2804 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44283⤵
- Suspicious behavior: EnumeratesProcesses
PID:3648
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