Analysis
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max time kernel
39s -
max time network
40s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
24-07-2024 21:26
Behavioral task
behavioral1
Sample
7b44b362de371182ddde982859bdef7dab62fae6853959bb58bf0498274f6357.xls
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
7b44b362de371182ddde982859bdef7dab62fae6853959bb58bf0498274f6357.xls
Resource
win10v2004-20240709-en
General
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Target
7b44b362de371182ddde982859bdef7dab62fae6853959bb58bf0498274f6357.xls
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Size
3.7MB
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MD5
941f4cd8bbdd211ffdc348fb783273af
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SHA1
05241cb2124ec716381896e99a9d24f47f836920
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SHA256
7b44b362de371182ddde982859bdef7dab62fae6853959bb58bf0498274f6357
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SHA512
c1b3fb4af3300bf56cce27fa058dc7cd3716a9b002180fc2d665c2cabfc34a6755c952856e5dc3ad6b898c85ad66e9fa0568cbe476755078b08ef1e2acb66271
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SSDEEP
98304:YjaS8pTCdC2Ovwiw/jOYYZxwDdobe9wivVxdBR1mxIJ:YjaSKTCdJORijOYYoZpZtxdBrmCJ
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 4768 4532 DW20.EXE 83 -
Checks processor information in registry 2 TTPs 6 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 dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString dwwin.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 5 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU dwwin.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4532 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4532 wrote to memory of 4768 4532 EXCEL.EXE 88 PID 4532 wrote to memory of 4768 4532 EXCEL.EXE 88 PID 4768 wrote to memory of 2396 4768 DW20.EXE 89 PID 4768 wrote to memory of 2396 4768 DW20.EXE 89
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\7b44b362de371182ddde982859bdef7dab62fae6853959bb58bf0498274f6357.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:4532 -
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 34162⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:4768 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 34163⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:2396
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