Analysis
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max time kernel
99s -
max time network
128s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 23:07
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-665502306.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-665502306.xls
Resource
win10
General
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Target
doc_pack-665502306.xls
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Size
62KB
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MD5
a6571f19c971a28eeb93c4352e5b7de3
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SHA1
39154450387fe18393d88c908d942d9c7207f41f
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SHA256
253c6b49a7dc8f2c5c47c4767153049b6d6c579d32e9038f81a5f7e36c195d20
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SHA512
c255495e31fb41bc04197e5f421025cce4ef4c0dcca51b92e9dc61c99e02de2d3265ea69d0ce2bc0d506c2a0e48269ce0ae4ca2b25d9c4908779c3b437cf0a39
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 1600 3828 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\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 3828 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3828 EXCEL.EXE 3828 EXCEL.EXE 1860 dwwin.exe 1860 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3828 wrote to memory of 1600 3828 EXCEL.EXE 76 PID 3828 wrote to memory of 1600 3828 EXCEL.EXE 76 PID 1600 wrote to memory of 1860 1600 DW20.EXE 77 PID 1600 wrote to memory of 1860 1600 DW20.EXE 77
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-665502306.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:3828 -
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 44762⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44763⤵
- Suspicious behavior: EnumeratesProcesses
PID:1860
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