Analysis
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max time kernel
14s -
max time network
137s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 23:08
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-640520311.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-640520311.xls
Resource
win10
General
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Target
doc_pack-640520311.xls
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Size
62KB
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MD5
348dbc046c2b3952dbd36381e1668baa
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SHA1
886f05753375fb3d40c208d2d0e378bc2d188517
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SHA256
770ed602d0882a05d996ec112676b78fb25e629e7ad4aaaf3f40c26b3e7a09f6
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SHA512
e876e844392864149347629fd15728b71e0eed4f9e4d0d400f19eb7dac2940ad67386be1a5f31bfb86f284b3dae61000620d7931af7ab94c53d9431a45e1c213
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 2112 3100 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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 3100 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3100 EXCEL.EXE 3100 EXCEL.EXE 2172 dwwin.exe 2172 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3100 EXCEL.EXE 3100 EXCEL.EXE 3100 EXCEL.EXE 3100 EXCEL.EXE 3100 EXCEL.EXE 3100 EXCEL.EXE 3100 EXCEL.EXE 3100 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3100 wrote to memory of 2112 3100 EXCEL.EXE 77 PID 3100 wrote to memory of 2112 3100 EXCEL.EXE 77 PID 2112 wrote to memory of 2172 2112 DW20.EXE 78 PID 2112 wrote to memory of 2172 2112 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\doc_pack-640520311.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:3100 -
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 45002⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2112 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 45003⤵
- Suspicious behavior: EnumeratesProcesses
PID:2172
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