Analysis
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max time kernel
146s -
max time network
148s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:22
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-383516144.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-383516144.xls
Resource
win10
General
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Target
doc_pack-383516144.xls
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Size
62KB
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MD5
77da2c8ecdf6240f2f010709b229dad7
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SHA1
5750f25a866289acc614fbc5af185a2a93efd60a
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SHA256
13ed235b27db69c380c7b658f4b7646aed366d6746c9a36df19436409a9c5890
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SHA512
97c5b5d4d5f177f54958f87f22ea23111d8a7010b9348887b5248fd2ba221b270380f79a5594070c5ad596d65e43a7d0766dcb11d3904cb4b9e1b96b9ab6978a
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 1908 3056 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 3056 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3056 EXCEL.EXE 3056 EXCEL.EXE 1676 dwwin.exe 1676 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3056 wrote to memory of 1908 3056 EXCEL.EXE 76 PID 3056 wrote to memory of 1908 3056 EXCEL.EXE 76 PID 1908 wrote to memory of 1676 1908 DW20.EXE 77 PID 1908 wrote to memory of 1676 1908 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-383516144.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:3056 -
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 44122⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1908 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44123⤵
- Suspicious behavior: EnumeratesProcesses
PID:1676
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