Analysis
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max time kernel
92s -
max time network
150s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1308503642.xls
Resource
win7
Behavioral task
behavioral2
Sample
document-1308503642.xls
Resource
win10v200722
General
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Target
document-1308503642.xls
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Size
426KB
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MD5
fcbd1575baeeb57d33dd6d5080c65c03
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SHA1
f9f385dec594b69b84b5d622ddbbd804df3e31a2
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SHA256
8db0088c0bdc783e7e0ca4eaac2308a46a912454dbd10bb63b5e4cfc42e0a7c1
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SHA512
deda3bad45bc8e0a4684e1dfe5136cf7a587c4817c418db81438f1cd8975b149cf831f4ff270b175d281b2750a098ed5eab1036e43dc7b43f51ce28690eafa7b
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 3548 796 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 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 796 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 796 EXCEL.EXE 796 EXCEL.EXE 3620 dwwin.exe 3620 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE 796 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 796 wrote to memory of 3548 796 EXCEL.EXE 79 PID 796 wrote to memory of 3548 796 EXCEL.EXE 79 PID 3548 wrote to memory of 3620 3548 DW20.EXE 80 PID 3548 wrote to memory of 3620 3548 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\document-1308503642.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:796 -
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 48082⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3548 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 48083⤵
- Suspicious behavior: EnumeratesProcesses
PID:3620
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