Analysis
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max time kernel
82s -
max time network
147s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1382903420.xls
Resource
win7
Behavioral task
behavioral2
Sample
document-1382903420.xls
Resource
win10v200722
General
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Target
document-1382903420.xls
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Size
426KB
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MD5
724155d5c6bade0c61e25a41e6f72447
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SHA1
4da5b74e70492ce978978aecde9bc89fd40bcb93
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SHA256
ef574f14c89a54d5f8ebb5e3c3748d76bbfbb4c6cd81ab31c8f7952d1a226760
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SHA512
e4c85d69a822718639d5a67f763407fcb40026deabe8440034e991642797fabc96c24a49809c7eb51ac337ebdb3bc272783cafd3d258510f1bd197411bc45e62
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 3376 3876 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 3876 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3876 EXCEL.EXE 3876 EXCEL.EXE 1252 dwwin.exe 1252 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE 3876 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3876 wrote to memory of 3376 3876 EXCEL.EXE 79 PID 3876 wrote to memory of 3376 3876 EXCEL.EXE 79 PID 3376 wrote to memory of 1252 3376 DW20.EXE 80 PID 3376 wrote to memory of 1252 3376 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-1382903420.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:3876 -
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 46282⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3376 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46283⤵
- Suspicious behavior: EnumeratesProcesses
PID:1252
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