Analysis
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max time kernel
36s -
max time network
34s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 04:32
Behavioral task
behavioral1
Sample
2bbfb8103ab3c54925872ae20ee0b7c0e8dc6d12b1fa58e4ad6d98ab0f4e9b90.xls
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2bbfb8103ab3c54925872ae20ee0b7c0e8dc6d12b1fa58e4ad6d98ab0f4e9b90.xls
Resource
win10v2004-20240426-en
General
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Target
2bbfb8103ab3c54925872ae20ee0b7c0e8dc6d12b1fa58e4ad6d98ab0f4e9b90.xls
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Size
70KB
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MD5
8b6c8b6c5dc770fb13866b0e3b2d1bbf
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SHA1
76f11f330683cb9ac74327546e12702300205797
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SHA256
2bbfb8103ab3c54925872ae20ee0b7c0e8dc6d12b1fa58e4ad6d98ab0f4e9b90
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SHA512
319f67cfd1f03ef177230636ba93b48c9485a71dca49f11ce001cb7779624348babf7bb2bdbb3132a57575723c37ec79963183bc20d22f4d4c512e2f77988ff4
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SSDEEP
1536:FdhqcOcyDBfPhTxNHdLVvScSIqE4CavEk3hOdsylKlgryzc4bNhZFGzE+cL4LglO:ZqcOcyDBHhTxNHdLVvScSIqE4CavEk3L
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 5108 2020 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:
dwwin.exeEXCEL.EXEdescription ioc process 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 Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 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\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 Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 2020 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
EXCEL.EXEpid process 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
EXCEL.EXEpid process 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEDW20.EXEdescription pid process target process PID 2020 wrote to memory of 5108 2020 EXCEL.EXE DW20.EXE PID 2020 wrote to memory of 5108 2020 EXCEL.EXE DW20.EXE PID 5108 wrote to memory of 2172 5108 DW20.EXE dwwin.exe PID 5108 wrote to memory of 2172 5108 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\2bbfb8103ab3c54925872ae20ee0b7c0e8dc6d12b1fa58e4ad6d98ab0f4e9b90.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:2020 -
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 47362⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:5108 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47363⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:2172