Analysis
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max time kernel
137s -
max time network
144s -
platform
windows10_x64 -
resource
win10 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1349756250.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
document-1349756250.xls
Resource
win10
General
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Target
document-1349756250.xls
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Size
426KB
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MD5
cb76282e593f290f708ce2ebd1bc4685
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SHA1
f734460b016693a484a41df5ff085959d12d8158
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SHA256
037c82e7887ce93c33d9c8b568fcdd1192229a8fdc939bcf3a3f3369b26a23fa
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SHA512
0fd0735c57670dbe702ba7818da9a56db1fb814e38865be8da5e8f13dd2720b39c4a0d73503297d081ed65bd3d33ea688671b75bf136f33ea2a1fc839340c2ad
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 1196 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 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 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 720 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 720 EXCEL.EXE 720 EXCEL.EXE 1360 dwwin.exe 1360 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 1196 720 EXCEL.EXE 76 PID 720 wrote to memory of 1196 720 EXCEL.EXE 76 PID 1196 wrote to memory of 1360 1196 DW20.EXE 77 PID 1196 wrote to memory of 1360 1196 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\document-1349756250.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 44762⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:1196 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44763⤵
- Suspicious behavior: EnumeratesProcesses
PID:1360
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