Analysis
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max time kernel
139s -
max time network
142s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
19/10/2020, 22:55
Static task
static1
Behavioral task
behavioral1
Sample
document-1001639073.xls
Resource
win7
Behavioral task
behavioral2
Sample
document-1001639073.xls
Resource
win10v200722
General
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Target
document-1001639073.xls
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Size
426KB
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MD5
cae1444c9c0afc7bcd37edcee91aa2b5
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SHA1
3ffe3b7942667ae491e8b1af2453cd2bde1592ea
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SHA256
ca1a27b3f4acdc1974d687d1717a70a0460efb2f8db6085d7cf6de11df1f3d2d
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SHA512
68891b65516a5d51e57b9ed374bb1ac6bc1db8c8cdd5914ed1954619982a0af4b7bae46523ade5dac8d60969508d49a1606940a534a2e81604d05bc5886165a1
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 3512 904 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 904 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 904 EXCEL.EXE 904 EXCEL.EXE 1744 dwwin.exe 1744 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 904 EXCEL.EXE 904 EXCEL.EXE 904 EXCEL.EXE 904 EXCEL.EXE 904 EXCEL.EXE 904 EXCEL.EXE 904 EXCEL.EXE 904 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 904 wrote to memory of 3512 904 EXCEL.EXE 74 PID 904 wrote to memory of 3512 904 EXCEL.EXE 74 PID 3512 wrote to memory of 1744 3512 DW20.EXE 75 PID 3512 wrote to memory of 1744 3512 DW20.EXE 75
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-1001639073.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:904 -
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:3512 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44723⤵
- Suspicious behavior: EnumeratesProcesses
PID:1744
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