Analysis
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max time kernel
85s -
max time network
152s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1255716615.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
document-1255716615.xls
Resource
win10v200722
General
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Target
document-1255716615.xls
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Size
426KB
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MD5
f06c33436ce77ad4e943f7a606e884c1
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SHA1
cbd3c7f36366ada0eac0d7f9eee0567772fcc65e
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SHA256
a266df06bbfd7f611ed1534c19ce63a781d3f992c5709ea096281b4729f0b579
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SHA512
c8d48b6728804c66874514823ee522a6bb54bfe4886fa0a235416642d4c5b6a78cc9dd6d3dfc9c37634013d219dd360afc1c835ed057517fd65ca9d8fc054c20
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 3644 424 DW20.EXE 65 -
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 424 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 424 EXCEL.EXE 424 EXCEL.EXE 3020 dwwin.exe 3020 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 424 EXCEL.EXE 424 EXCEL.EXE 424 EXCEL.EXE 424 EXCEL.EXE 424 EXCEL.EXE 424 EXCEL.EXE 424 EXCEL.EXE 424 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 424 wrote to memory of 3644 424 EXCEL.EXE 79 PID 424 wrote to memory of 3644 424 EXCEL.EXE 79 PID 3644 wrote to memory of 3020 3644 DW20.EXE 80 PID 3644 wrote to memory of 3020 3644 DW20.EXE 80
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-1255716615.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:424 -
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 47042⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3644 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47043⤵
- Suspicious behavior: EnumeratesProcesses
PID:3020
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