Analysis
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max time kernel
7s -
max time network
126s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:23
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-354065331.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-354065331.xls
Resource
win10
General
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Target
doc_pack-354065331.xls
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Size
62KB
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MD5
bad77d2f4ee52bb3d69dc0568d0c98fa
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SHA1
a5967e14edd5a6bc1fa0779879150a3f2a08f551
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SHA256
8527e1ee98bd62527f021c1f0a02389d4115dfd5959fc89894adbd4226ecffd4
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SHA512
5381958c5531367122c25795f2415286ff344ea3cc67156c9409b1a7c5c314b53e44f88e1bf135c86f4791b5380c2719bbbb4fc3261aa5b32a05d5bbb53496b0
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 3844 3672 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3672 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3672 EXCEL.EXE 3672 EXCEL.EXE 1620 dwwin.exe 1620 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3672 EXCEL.EXE 3672 EXCEL.EXE 3672 EXCEL.EXE 3672 EXCEL.EXE 3672 EXCEL.EXE 3672 EXCEL.EXE 3672 EXCEL.EXE 3672 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3672 wrote to memory of 3844 3672 EXCEL.EXE 77 PID 3672 wrote to memory of 3844 3672 EXCEL.EXE 77 PID 3844 wrote to memory of 1620 3844 DW20.EXE 78 PID 3844 wrote to memory of 1620 3844 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-354065331.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:3672 -
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 44722⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3844 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44723⤵
- Suspicious behavior: EnumeratesProcesses
PID:1620
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