Analysis
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max time kernel
71s -
max time network
138s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1311924528.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
document-1311924528.xls
Resource
win10v200722
General
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Target
document-1311924528.xls
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Size
426KB
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MD5
239e3f828472fc7795bc8d34d1f64410
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SHA1
4c87db53f28684be1ffa40a3af9ff71e81349aef
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SHA256
4672c923c8680d66f43b4f960d8b2fc6d5c1b0bfaed766849a84dde4809fb8fe
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SHA512
33c60e63cb9a50679b3499954e4a773da48142d07f545dc36b9650418f0d3bc5aba73e6bda40970860db539e59d4fe07a0a7f7b2723636fa9ef29b35efb72fea
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 3700 540 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 540 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 540 EXCEL.EXE 540 EXCEL.EXE 2620 dwwin.exe 2620 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE 540 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 540 wrote to memory of 3700 540 EXCEL.EXE 74 PID 540 wrote to memory of 3700 540 EXCEL.EXE 74 PID 3700 wrote to memory of 2620 3700 DW20.EXE 76 PID 3700 wrote to memory of 2620 3700 DW20.EXE 76
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\document-1311924528.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:540 -
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 46962⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3700 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46963⤵
- Suspicious behavior: EnumeratesProcesses
PID:2620
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