Analysis
- max time kernel
148s - max time network
129s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/10/2026, 16:18
Behavioral task
behavioral1
Sample
attachment20261002-278819-8udi28.xlsm
Resource
win10v2004-20260911-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
attachment20261002-278819-8udi28.xlsm
Resource
win11ltsc2024-20260911-en
8 signatures
150 seconds
General
- Target attachment20261002-278819-8udi28.xlsm
- Size 555KB
- Sample261002-tr5masea45
- 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 4124 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE - NTFS ADS 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\1AA95E00\:Zone.Identifier:$DATA EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4124 EXCEL.EXE - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4124 EXCEL.EXE 4124 EXCEL.EXE - Suspicious use of SetWindowsHookEx 11 IoCs
pid Process 4124 EXCEL.EXE 4124 EXCEL.EXE 4124 EXCEL.EXE 4124 EXCEL.EXE 4124 EXCEL.EXE 4124 EXCEL.EXE 4124 EXCEL.EXE 4124 EXCEL.EXE 4124 EXCEL.EXE 4124 EXCEL.EXE 4124 EXCEL.EXE - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4124 wrote to memory of 4944 4124 EXCEL.EXE 89
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\attachment20261002-278819-8udi28.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:4124 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:4944
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:6120
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\1AA95E00
- Size 550KB
- SHA256 692dfd57e18072fb8dcf8d254e1836e2657d4314afb75c84fbdd4edc2ce58c8a
- MD5 c6d83787d002a98b071117bccc38a481
- SHA1 7c3e827589fa87bee915dc6a5215742cedc76724
- SHA512 06be3c2d94812bf227ac038c16f60adc289342f6809ac1c8a9e353d06c97e46825f1955c568fa98564f8e0d8dfcf323037057e433517302e3354e2497e11f17d
- SSDEEP 12288:YYeJ04VK6trFlaX4pmUEo1V3rol/AWkKONQHfv:iJRVz1PpmUEexe//ISv
- TLSH T14BC4121ADDA89C34D2C998B8D28E80F141675A559637960F30DCE9484B877FB0ECF2ED
- MD5 SHA1 SHA512 SSDEEP TLSH