Analysis
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max time kernel
129s -
max time network
135s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 22:22
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-340914655.xls
Resource
win7v200722
Behavioral task
behavioral2
Sample
doc_pack-340914655.xls
Resource
win10
General
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Target
doc_pack-340914655.xls
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Size
62KB
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MD5
ccd54683c7b990099621c26af15d37d3
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SHA1
0bf02bcaf04ae73aac92a5e9548118967dd9ba48
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SHA256
4b9cc1e250931e638aaab20a46fa7b3563e9947620f7ca1c7e0f421b2a34207c
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SHA512
31211471eb7ca76a46144addab846cf650e74c6d06ce2eb359b15df7ba2cf266e0a9c9e3490d160fd2af0965b70a593f3dd906ce3a825b3b8ca93684bfb8ec2d
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 2528 2880 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 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 2880 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2880 EXCEL.EXE 2880 EXCEL.EXE 3316 dwwin.exe 3316 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE 2880 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2880 wrote to memory of 2528 2880 EXCEL.EXE 76 PID 2880 wrote to memory of 2528 2880 EXCEL.EXE 76 PID 2528 wrote to memory of 3316 2528 DW20.EXE 77 PID 2528 wrote to memory of 3316 2528 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\doc_pack-340914655.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:2880 -
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 44402⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44403⤵
- Suspicious behavior: EnumeratesProcesses
PID:3316
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