Analysis
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max time kernel
88s -
max time network
155s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
19/10/2020, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
document-1340408362.xls
Resource
win7
Behavioral task
behavioral2
Sample
document-1340408362.xls
Resource
win10v200722
General
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Target
document-1340408362.xls
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Size
426KB
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MD5
3561dbb608971e6b1280b1d65bd81d06
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SHA1
6b89e35ebc92311030d4c568a761b30ba705f711
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SHA256
014709e06ae0ccab700e793a27814779c8f176a76bfb9f27eae5a166b89ddd4d
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SHA512
9117395e7ac62efc81c672c28deb55f785ae77595b787609e95d526f35310a5859bfbeefa94af3865d7eca877a285edde39e1b35840ab7d2ceeb818264e1d644
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 212 3900 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 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 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 3900 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3900 EXCEL.EXE 3900 EXCEL.EXE 1412 dwwin.exe 1412 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3900 EXCEL.EXE 3900 EXCEL.EXE 3900 EXCEL.EXE 3900 EXCEL.EXE 3900 EXCEL.EXE 3900 EXCEL.EXE 3900 EXCEL.EXE 3900 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3900 wrote to memory of 212 3900 EXCEL.EXE 77 PID 3900 wrote to memory of 212 3900 EXCEL.EXE 77 PID 212 wrote to memory of 1412 212 DW20.EXE 78 PID 212 wrote to memory of 1412 212 DW20.EXE 78
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-1340408362.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:3900 -
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 47402⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:212 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47403⤵
- Suspicious behavior: EnumeratesProcesses
PID:1412
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