Analysis
- max time kernel
149s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
30/09/2026, 20:10
Behavioral task
behavioral1
Sample
attachment20260930-527357-ycua26.xlsm
Resource
win10v2004-20260911-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
attachment20260930-527357-ycua26.xlsm
Resource
win11ltsc2024-20260911-en
8 signatures
150 seconds
General
- Target attachment20260930-527357-ycua26.xlsm
- Size 555KB
- Sample260930-yxtjfa118p
- SHA256 7dc6e3106413ad883680745af653b737bc9ae0b2d2599eeb7ee45aeea3a4494f
- MD5 39aa1923e02ff1b6ba0730167cc55165
- SHA1 e78df3924af4b8006325a97a0be7722606c8c60f
- SHA512 54a89b3528b9b09ad04c81bb31af3ce09b53a85f4009a38c5827b99c8ed8af84e0ffbbaae3ab02ae8d0a54b07df3f786ee5a92070c347bb2c5bee35367e84c08
- SSDEEP 12288:stqRgLFbA4XUTzCpOrYUsEV3lol/AWkf/SaBQHD:s+gLNITztKExs//MSJ
- TLSH T1F5C42319E3489C28C25F84B8E1DC10E582AB2B51E522F60F3CACB95C5F9D5774ECE399
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Deletes itself 1 TTPs 1 IoCs
pid Process 3828 EXCEL.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 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 - NTFS ADS 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\6DA85E00\:Zone.Identifier:$DATA EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3828 EXCEL.EXE - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3828 EXCEL.EXE 3828 EXCEL.EXE - Suspicious use of SetWindowsHookEx 11 IoCs
pid Process 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE 3828 EXCEL.EXE - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3828 wrote to memory of 2028 3828 EXCEL.EXE 88
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\attachment20260930-527357-ycua26.xlsm"1⤵
- Deletes itself
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3828 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:2028
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:880
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\6DA85E00
- Size 550KB
- SHA256 8a3429719e6107b740add284f94119ba95542335092669c1b19014a0256248c0
- MD5 c4ade73deb56953beb74992bff3c59e5
- SHA1 8b12cef199a216e547c3d03ce85622be8b3f2c0a
- SHA512 0e9a2de63abbd50ed8719656bed99b7610fb7d6b1cfdac35d51397420858dcb363193e343f4e3e2ac64b91d6cc4ae943d7fb877a6a3c13bb3c664b5816c4c8c1
- SSDEEP 12288:sYeJ04VK6trFlaX4pmUEo1V3rol/AWkKF/MQHfs0:eJRVz1PpmUEexe//z/hs0
- TLSH T131C4121ADDA8CC34D2C998B8D29E90F141665A459637960F30DCE9484B877FB0ECF2ED
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
- Size 2KB
- SHA256 268df3854695b8ab7bd64a3aedf907f4f386addb58724c56bb44c499cec56d2a
- MD5 5beebbac7a17995bbfc8ceb24c656628
- SHA1 76912fe602df0f5dd73e3276f6759cf33f3979fb
- SHA512 937c63d60c2ee08ba40578bbd6ec2f7ab573c0d3f6880bfd68813a7b521333a90de47a15fb623751600e41595830636fba3b08ea2596c257c551b50a9ee9e47c
- TLSH T12E5131020AC75EBFE03D86791A75A39BDB70FC13E304011D73C801AD6EA2140877EA6E
- MD5 SHA1 SHA512 TLSH