Analysis
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max time kernel
152s -
max time network
152s -
platform
windows10_x64 -
resource
win10 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1381764654.xls
Resource
win7
Behavioral task
behavioral2
Sample
document-1381764654.xls
Resource
win10
General
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Target
document-1381764654.xls
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Size
426KB
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MD5
ecdc553c5945b1c7cf96b34b2159d153
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SHA1
e1572cc58d095baa41ba7ec1f038709f209c428f
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SHA256
725c23c4ac51f1727dad17f31da9c37b546347b629065c024b615bba8f481bff
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SHA512
98c231178eda667c4f34f538ae8b43164058bf37157d1647a1a7dbd3df57dc9937f38ecd2eb5ef282403bc0d8aa3cb788a8bec92189c469ce428b7353391bd46
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 2712 3404 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 3404 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3404 EXCEL.EXE 3404 EXCEL.EXE 2748 dwwin.exe 2748 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE 3404 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3404 wrote to memory of 2712 3404 EXCEL.EXE 76 PID 3404 wrote to memory of 2712 3404 EXCEL.EXE 76 PID 2712 wrote to memory of 2748 2712 DW20.EXE 77 PID 2712 wrote to memory of 2748 2712 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-1381764654.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:3404 -
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 44882⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2712 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44883⤵
- Suspicious behavior: EnumeratesProcesses
PID:2748
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