Analysis
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max time kernel
86s -
max time network
154s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 22:28
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-423193066.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-423193066.xls
Resource
win10v200722
General
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Target
doc_pack-423193066.xls
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Size
62KB
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MD5
9f6a7804768caa25558a812412948c87
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SHA1
3cfacff55493e29a7647693f3ae19fb2b85783ca
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SHA256
c5f90f858a4b71575c3fd43bf1d142fd2a6343240240a621c3a13b013d997e23
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SHA512
e18e37f6a52618898e4b4ad40ff1fed75234ea9655e55fc1dc87003dbeca4b658b8644c48066c60dddedf267531a5d6abedae6bd5b20a8d053f3e026b09557ec
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 332 2584 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2584 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2584 EXCEL.EXE 2584 EXCEL.EXE 4048 dwwin.exe 4048 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 2584 EXCEL.EXE 2584 EXCEL.EXE 2584 EXCEL.EXE 2584 EXCEL.EXE 2584 EXCEL.EXE 2584 EXCEL.EXE 2584 EXCEL.EXE 2584 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2584 wrote to memory of 332 2584 EXCEL.EXE 79 PID 2584 wrote to memory of 332 2584 EXCEL.EXE 79 PID 332 wrote to memory of 4048 332 DW20.EXE 80 PID 332 wrote to memory of 4048 332 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-423193066.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:2584 -
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 47002⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:332 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47003⤵
- Suspicious behavior: EnumeratesProcesses
PID:4048
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