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Analysis
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max time kernel
161s -
max time network
172s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
31/12/2023, 02:38
Behavioral task
behavioral1
Sample
24c3546af255b3061c9984a94cf814c0.xls
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
24c3546af255b3061c9984a94cf814c0.xls
Resource
win10v2004-20231215-en
General
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Target
24c3546af255b3061c9984a94cf814c0.xls
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Size
36KB
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MD5
24c3546af255b3061c9984a94cf814c0
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SHA1
b832bd9188c388da763003f5ee2b0e6e2c529f53
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SHA256
48f6fd13e574d918e1151b8eceb63b697af0ab003e681d5bf765b1e0472f1c0a
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SHA512
a74216308f08283109dc1c6de74347ab5952042d03f07ebb5293085daa80451c001c1b07521d3c9134f74b5676a17583497c15b7e120ee67690e85c40daf30c1
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SSDEEP
768:CPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJ/EYNuU64gKd2k:mok3hbdlylKsgqopeJBWhZFGkE+cL2Ng
Malware Config
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4224 4792 explorer.exe 14 -
Blocklisted process makes network request 2 IoCs
flow pid Process 49 4580 WScript.exe 54 4580 WScript.exe -
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 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 EXCEL.EXE -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4792 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4792 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 4792 EXCEL.EXE 4792 EXCEL.EXE 4792 EXCEL.EXE 4792 EXCEL.EXE 4792 EXCEL.EXE 4792 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4792 wrote to memory of 4224 4792 EXCEL.EXE 95 PID 4792 wrote to memory of 4224 4792 EXCEL.EXE 95 PID 1720 wrote to memory of 4580 1720 explorer.exe 97 PID 1720 wrote to memory of 4580 1720 explorer.exe 97
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\24c3546af255b3061c9984a94cf814c0.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4792 -
C:\Windows\explorer.exeexplorer.exe C:\Users\Public\Documents\rg4gX.vbs2⤵
- Process spawned unexpected child process
PID:4224
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1720 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\rg4gX.vbs"2⤵
- Blocklisted process makes network request
PID:4580
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