Analysis
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max time kernel
88s -
max time network
153s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-127740004.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
document-127740004.xls
Resource
win10v200722
General
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Target
document-127740004.xls
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Size
426KB
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MD5
03cab6ff23ad2361a905a3ddd3ec40b9
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SHA1
0d5aa98ecca528fba2eaa228fe340331cbca7cd6
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SHA256
d69208a56b391d03342064b22c7c4c2edd72497c522453221b4f90e8ee2d1293
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SHA512
ad8d8aa07193f3804ab92d926cec3663870c22dbdc3647bc827a0e734cb55f97db4d2b4ac872f82737986015f16298a1ac38a99f32a14e2a2b22504213673037
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 212 3908 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 3908 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3908 EXCEL.EXE 3908 EXCEL.EXE 732 dwwin.exe 732 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3908 EXCEL.EXE 3908 EXCEL.EXE 3908 EXCEL.EXE 3908 EXCEL.EXE 3908 EXCEL.EXE 3908 EXCEL.EXE 3908 EXCEL.EXE 3908 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3908 wrote to memory of 212 3908 EXCEL.EXE 77 PID 3908 wrote to memory of 212 3908 EXCEL.EXE 77 PID 212 wrote to memory of 732 212 DW20.EXE 78 PID 212 wrote to memory of 732 212 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\document-127740004.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:3908 -
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 38842⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:212 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 38843⤵
- Suspicious behavior: EnumeratesProcesses
PID:732
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