Analysis
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max time kernel
104s -
max time network
135s -
platform
windows10_x64 -
resource
win10 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1375691566.xls
Resource
win7
Behavioral task
behavioral2
Sample
document-1375691566.xls
Resource
win10
General
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Target
document-1375691566.xls
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Size
426KB
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MD5
617017c5192960a146f8ad27c03218ad
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SHA1
ff96175c0c404b4faf93c729ba1e2b27874eb459
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SHA256
81687fe911ed953edbb7eefdc7f29787c81c05d803d717c554f9a563300cb6ad
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SHA512
794712020a2dfb1f46f6f880e0f475f9bc58f4f8ba2587b4f1e690afdcacc1a27f142b4cd89e0b8c80012645249cde4b02caf126dfb657fe051a253d16883d31
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 1920 720 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 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 720 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 720 EXCEL.EXE 720 EXCEL.EXE 2076 dwwin.exe 2076 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 720 EXCEL.EXE 720 EXCEL.EXE 720 EXCEL.EXE 720 EXCEL.EXE 720 EXCEL.EXE 720 EXCEL.EXE 720 EXCEL.EXE 720 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 720 wrote to memory of 1920 720 EXCEL.EXE 77 PID 720 wrote to memory of 1920 720 EXCEL.EXE 77 PID 1920 wrote to memory of 2076 1920 DW20.EXE 79 PID 1920 wrote to memory of 2076 1920 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-1375691566.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:720 -
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 46802⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1920 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46803⤵
- Suspicious behavior: EnumeratesProcesses
PID:2076
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