Analysis
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max time kernel
33s -
max time network
35s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
31-05-2024 01:45
Behavioral task
behavioral1
Sample
b64a6c2cf6619a7517d1dcc6a139578a6fbedfbe14c269a8f1ccf6380412e0ad.xlsm
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b64a6c2cf6619a7517d1dcc6a139578a6fbedfbe14c269a8f1ccf6380412e0ad.xlsm
Resource
win10v2004-20240426-en
General
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Target
b64a6c2cf6619a7517d1dcc6a139578a6fbedfbe14c269a8f1ccf6380412e0ad.xlsm
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Size
92KB
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MD5
09b76d3302be4192b0c2de27078fe8a5
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SHA1
a78554438fde3b52aab95cf82388749dec1551ff
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SHA256
b64a6c2cf6619a7517d1dcc6a139578a6fbedfbe14c269a8f1ccf6380412e0ad
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SHA512
d59beacd7746048912f194344aa5d67a2c51ddc8f5f93b0fdffb91173b236cb8ddd95ddcdcdf17706c2c9989d5b856bb9f99a9df7d0b80173bc0cd151e12b488
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SSDEEP
1536:CguZCa6S5khUIFse094znOSjhLM+vGa/M1NIpPkUlB7583fjncFYIIPFO:CgugapkhlFse09aPjpM+d/Ms8ULavLc9
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 4232 1968 DW20.EXE 81 -
Checks processor information in registry 2 TTPs 6 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 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 -
Enumerates system info in registry 2 TTPs 5 IoCs
description ioc Process 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 Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS dwwin.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1968 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1968 EXCEL.EXE 1968 EXCEL.EXE 1968 EXCEL.EXE 1968 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1968 EXCEL.EXE 1968 EXCEL.EXE 1968 EXCEL.EXE 1968 EXCEL.EXE 1968 EXCEL.EXE 1968 EXCEL.EXE 1968 EXCEL.EXE 1968 EXCEL.EXE 1968 EXCEL.EXE 1968 EXCEL.EXE 1968 EXCEL.EXE 1968 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1968 wrote to memory of 4232 1968 EXCEL.EXE 85 PID 1968 wrote to memory of 4232 1968 EXCEL.EXE 85 PID 4232 wrote to memory of 3436 4232 DW20.EXE 87 PID 4232 wrote to memory of 3436 4232 DW20.EXE 87
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\b64a6c2cf6619a7517d1dcc6a139578a6fbedfbe14c269a8f1ccf6380412e0ad.xlsm"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:1968 -
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 47962⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:4232 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 47963⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:3436
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