Analysis
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max time kernel
38s -
max time network
34s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
20-05-2024 07:40
Behavioral task
behavioral1
Sample
b90dcaa2fc3061d2a4950174b1191e2d034ecdc5d25f36f2ed45933dab0d622d.xls
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
b90dcaa2fc3061d2a4950174b1191e2d034ecdc5d25f36f2ed45933dab0d622d.xls
Resource
win10v2004-20240508-en
General
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Target
b90dcaa2fc3061d2a4950174b1191e2d034ecdc5d25f36f2ed45933dab0d622d.xls
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Size
184KB
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MD5
f6a0d331fafd51590a997d3a8fd22a62
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SHA1
58f5b124f84b9729b9b9d1a30e61a88413fde8d4
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SHA256
b90dcaa2fc3061d2a4950174b1191e2d034ecdc5d25f36f2ed45933dab0d622d
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SHA512
5374c35eeefde86b6e9e3a955b0aea2d0f3dd955f41bb5b4c2659c13f587cf680a6407c5635a6d568cfb9f918ee44a3e0c14b7c952a6346ecd03ca7d0945cb8f
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SSDEEP
3072:Z0cxEtjPOtioVjDGUU1qfDlaGGx+cLYIxAp6Acih6+qXrNmOzHe4FzwlHzN0hLfz:XxEtjPOtioVjDGUU1qfDlavx+WYIxApN
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.
Processes:
DW20.EXEdescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4808 1244 DW20.EXE EXCEL.EXE -
Checks processor information in registry 2 TTPs 6 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdwwin.exedescription 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 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 -
Enumerates system info in registry 2 TTPs 5 IoCs
Processes:
EXCEL.EXEdwwin.exedescription ioc process 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1244 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
EXCEL.EXEpid process 1244 EXCEL.EXE 1244 EXCEL.EXE 1244 EXCEL.EXE 1244 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
EXCEL.EXEpid process 1244 EXCEL.EXE 1244 EXCEL.EXE 1244 EXCEL.EXE 1244 EXCEL.EXE 1244 EXCEL.EXE 1244 EXCEL.EXE 1244 EXCEL.EXE 1244 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEDW20.EXEdescription pid process target process PID 1244 wrote to memory of 4808 1244 EXCEL.EXE DW20.EXE PID 1244 wrote to memory of 4808 1244 EXCEL.EXE DW20.EXE PID 4808 wrote to memory of 2504 4808 DW20.EXE dwwin.exe PID 4808 wrote to memory of 2504 4808 DW20.EXE dwwin.exe
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\b90dcaa2fc3061d2a4950174b1191e2d034ecdc5d25f36f2ed45933dab0d622d.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:1244 -
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 46042⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:4808 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 46043⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:2504