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Analysis
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max time kernel
150s -
max time network
153s -
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, 03:17
Behavioral task
behavioral1
Sample
260f43d3f3ae8929a8d131854e1c6c85.xls
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
260f43d3f3ae8929a8d131854e1c6c85.xls
Resource
win10v2004-20231215-en
General
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Target
260f43d3f3ae8929a8d131854e1c6c85.xls
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Size
35KB
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MD5
260f43d3f3ae8929a8d131854e1c6c85
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SHA1
8e6ad3d7b094756d9bae4fa0968fd7b18b62d8fd
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SHA256
40682d6097e4a500d37731e8ab41b11f61a479d975ff432d22004c619f54f832
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SHA512
1731250047743e4d17e6e4908971fc4d1a32d7cdf52bb59ab43c8766c5ecc097902e496dc90fb0f90eebc5ddb97592958f1707b2cdc25fd4a21af4e6fb8e21b8
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SSDEEP
768:OPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJK/G9aLXb84Zzd:yok3hbdlylKsgqopeJBWhZFGkE+cL2Nl
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 4336 3304 explorer.exe 45 -
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 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 -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3304 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3304 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 3304 EXCEL.EXE 3304 EXCEL.EXE 3304 EXCEL.EXE 3304 EXCEL.EXE 3304 EXCEL.EXE 3304 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3304 wrote to memory of 4336 3304 EXCEL.EXE 93 PID 3304 wrote to memory of 4336 3304 EXCEL.EXE 93 PID 5076 wrote to memory of 1072 5076 explorer.exe 95 PID 5076 wrote to memory of 1072 5076 explorer.exe 95
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\260f43d3f3ae8929a8d131854e1c6c85.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:3304 -
C:\Windows\explorer.exeexplorer.exe C:\Users\Public\Documents\bphFqqgc.vbs2⤵
- Process spawned unexpected child process
PID:4336
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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:5076 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\bphFqqgc.vbs"2⤵PID:1072
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