Analysis
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max time kernel
91s -
max time network
151s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1426589057.xls
Resource
win7
Behavioral task
behavioral2
Sample
document-1426589057.xls
Resource
win10v200722
General
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Target
document-1426589057.xls
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Size
426KB
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MD5
7c9f986878fa9848089d6a1b19d53bc0
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SHA1
e5031c4968d5b1a92c75f11528590bfda1392d40
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SHA256
f8b3354c0d9adf0a12580cb577da7bef680b64c3c5f9053d368b59af8dd909fa
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SHA512
d6752a6f7765105a998414d8ef1c8a68dd7c2153609dd0ee6281572a03854c7324b5729e436f8fa782c3718c71f0edbc1a612815c69c09ca7b0e606421ab339b
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 3756 3056 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\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 3056 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3056 EXCEL.EXE 3056 EXCEL.EXE 3544 dwwin.exe 3544 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE 3056 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3056 wrote to memory of 3756 3056 EXCEL.EXE 80 PID 3056 wrote to memory of 3756 3056 EXCEL.EXE 80 PID 3756 wrote to memory of 3544 3756 DW20.EXE 81 PID 3756 wrote to memory of 3544 3756 DW20.EXE 81
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-1426589057.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:3056 -
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 45842⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3756 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 45843⤵
- Suspicious behavior: EnumeratesProcesses
PID:3544
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