Analysis
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max time kernel
96s -
max time network
131s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
20/10/2020, 23:07
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-588996186.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-588996186.xls
Resource
win10v200722
General
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Target
doc_pack-588996186.xls
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Size
62KB
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MD5
4cc90dbaf846709721eefca387a89555
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SHA1
6a1f605c6224c30f67c3b3b4abc507707e0b05b3
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SHA256
741d350c5d7b45cac0f4e8790574737ea1e1cac72eb02d6365899bd0c4c4bc5b
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SHA512
1420d7e92c7542c6ab614c5bd5f9ac5eb19e0e896bf110c76cb45d264d75eb6b80a51781fd38f5b249b4508aeddb5d44aa596d8f45a8500a4dd559f7bdb52939
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 936 1012 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 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 1012 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1012 EXCEL.EXE 1012 EXCEL.EXE 1952 dwwin.exe 1952 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 1012 EXCEL.EXE 1012 EXCEL.EXE 1012 EXCEL.EXE 1012 EXCEL.EXE 1012 EXCEL.EXE 1012 EXCEL.EXE 1012 EXCEL.EXE 1012 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1012 wrote to memory of 936 1012 EXCEL.EXE 76 PID 1012 wrote to memory of 936 1012 EXCEL.EXE 76 PID 936 wrote to memory of 1952 936 DW20.EXE 77 PID 936 wrote to memory of 1952 936 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-588996186.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:1012 -
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 46522⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:936 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46523⤵
- Suspicious behavior: EnumeratesProcesses
PID:1952
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