Analysis
- max time kernel
149s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
02/10/2026, 16:48
Behavioral task
behavioral1
Sample
attachment20261002-278819-npx5kk.xlsm
Resource
win10v2004-20260911-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
attachment20261002-278819-npx5kk.xlsm
Resource
win11ltsc2024-20260911-en
8 signatures
150 seconds
General
- Target attachment20261002-278819-npx5kk.xlsm
- Size 555KB
- Sample261002-va7wrssset
- 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 404 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\B0985E00\:Zone.Identifier:$DATA EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 404 EXCEL.EXE - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 404 EXCEL.EXE 404 EXCEL.EXE - Suspicious use of SetWindowsHookEx 11 IoCs
pid Process 404 EXCEL.EXE 404 EXCEL.EXE 404 EXCEL.EXE 404 EXCEL.EXE 404 EXCEL.EXE 404 EXCEL.EXE 404 EXCEL.EXE 404 EXCEL.EXE 404 EXCEL.EXE 404 EXCEL.EXE 404 EXCEL.EXE - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 404 wrote to memory of 5772 404 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-npx5kk.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:404 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:5772
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:3044
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\B0985E00
- Size 550KB
- SHA256 f776b6afbee525dfb239733a4ecf0e3af4876911620ea1e69eb019745e29e517
- MD5 5573e0d44210aa921535d81b141df080
- SHA1 3d3069c5e105622dc3c678f565e623ed7b9bbf6e
- SHA512 06a403fe5d1bd1d3d43dcd977a50fd0f42a0fe1ce861e61ddc92fffa16e04a70aed305a285c2ed73ea77648d801a3b500100f029c2665d8c09c202baca3a0a84
- SSDEEP 12288:nYeJ04VK6trFlaX4pmUEo1V3rol/AWkK+dQHf6:RJRVz1PpmUEexe//Yi6
- TLSH T166C4121AD958CC38D2D998B8D29E90F140665A459637960F30DCFA484B877FB0ECF2ED
- MD5 SHA1 SHA512 SSDEEP TLSH