Analysis
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max time kernel
85s -
max time network
151s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1421562353.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
document-1421562353.xls
Resource
win10v200722
General
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Target
document-1421562353.xls
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Size
426KB
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MD5
76a9be80b75fbbc017eaa0567fbb10a8
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SHA1
071e030f783fc91cfc8fda9f2d4f3b8e48c88c03
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SHA256
e9b6dcc61b130d17bd65f183d3c66efceb3e2a49015b77788b979b887bfa02d4
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SHA512
7f8124614636ff878831fa8ca558e066e132045f636ed67dbc687276aded6e858fc8a0bbe95fcafbba0b3cd98bdf2c4f1d7bd90bca7b4667a5aff6f7c7bbe77b
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 1240 3488 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 3488 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3488 EXCEL.EXE 3488 EXCEL.EXE 1608 dwwin.exe 1608 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3488 EXCEL.EXE 3488 EXCEL.EXE 3488 EXCEL.EXE 3488 EXCEL.EXE 3488 EXCEL.EXE 3488 EXCEL.EXE 3488 EXCEL.EXE 3488 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3488 wrote to memory of 1240 3488 EXCEL.EXE 78 PID 3488 wrote to memory of 1240 3488 EXCEL.EXE 78 PID 1240 wrote to memory of 1608 1240 DW20.EXE 79 PID 1240 wrote to memory of 1608 1240 DW20.EXE 79
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-1421562353.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:3488 -
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 47202⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1240 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47203⤵
- Suspicious behavior: EnumeratesProcesses
PID:1608
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