Analysis
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max time kernel
17s -
max time network
135s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 22:22
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-357975935.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-357975935.xls
Resource
win10v200722
General
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Target
doc_pack-357975935.xls
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Size
62KB
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MD5
8838a11fa665f40b0eefb8f13539e2b1
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SHA1
b8e1015fc81e84bdc8d6830e32ce7669362fe36b
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SHA256
f49446268638393b76b8c946d6da69234cccf1d265aaba167479634758a00c27
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SHA512
200db367ebfe13e9eee5adcb0fc2e9f5c4ba9e4e193dec86c35a44f5e52f08c6851e5fc60d64a2c0b0ce11dedce6798447eac461eed09d267d175156c62943f0
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 2072 3608 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 3608 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3608 EXCEL.EXE 3608 EXCEL.EXE 2576 dwwin.exe 2576 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3608 EXCEL.EXE 3608 EXCEL.EXE 3608 EXCEL.EXE 3608 EXCEL.EXE 3608 EXCEL.EXE 3608 EXCEL.EXE 3608 EXCEL.EXE 3608 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3608 wrote to memory of 2072 3608 EXCEL.EXE 73 PID 3608 wrote to memory of 2072 3608 EXCEL.EXE 73 PID 2072 wrote to memory of 2576 2072 DW20.EXE 74 PID 2072 wrote to memory of 2576 2072 DW20.EXE 74
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-357975935.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:3608 -
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 44722⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2072 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44723⤵
- Suspicious behavior: EnumeratesProcesses
PID:2576
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