Analysis
- max time kernel
148s - max time network
132s - 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, 08:22
Behavioral task
behavioral1
Sample
attachment20261002-278819-3nkzby.xlsm
Resource
win10v2004-20260911-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
attachment20261002-278819-3nkzby.xlsm
Resource
win11ltsc2024-20260911-en
8 signatures
150 seconds
General
- Target attachment20261002-278819-3nkzby.xlsm
- Size 555KB
- Sample261002-j9jsfasscx
- 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 1976 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\B9F85E00\:Zone.Identifier:$DATA EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1976 EXCEL.EXE - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1976 EXCEL.EXE 1976 EXCEL.EXE - Suspicious use of SetWindowsHookEx 11 IoCs
pid Process 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE 1976 EXCEL.EXE - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1976 wrote to memory of 3232 1976 EXCEL.EXE 91
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\attachment20261002-278819-3nkzby.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:1976 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:3232
-
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:2400
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\B9F85E00
- Size 550KB
- SHA256 0f7b26b6e7dc61c65769992cbc60beb339c7593a39d7e39bc44f7eb8bfd96168
- MD5 dd6ba466d294e4c058fbb08762cc9915
- SHA1 29db03564d42d4ea168c8efea90dc54688be444b
- SHA512 9d6fcb15e933bb5f3f14d15a25d57c01074ee9dbb950be3aecb0b340b9c541f516bcded17af7106eb7256378370ab5da8699a19abf46a284cc490b31257f5cdc
- SSDEEP 12288:rYeJ04VK6trFlaX4pmUEo1V3rol/AWkKotpQHf9D:NJRVz1PpmUEexe//WE9D
- TLSH T121C4121AD968CC38D2C99878D2DD90F140675A459637960F30DCE9584B877FB0ECF2EA
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\1F37LHACILXY7PYUT5OL.temp
- Size 1KB
- SHA256 9c6d174fa5a8b45245fafab388f8eb2532844d714918f7295fe0c5b1b2f103fa
- MD5 68959c10db79aa2a56c1971dd8646bb8
- SHA1 f1d98d9a6672d318bd972d0f5d6f73739e81747e
- SHA512 f7094ca3d0ac651bf246570e677e50d6daca442169d0b7a46e1568bbc87869d44fea7446c314d0bdd20c270bae462d7f023d1a2e5c3c028a18eb73df2006424a
- TLSH T13F21D0430AC30E37D1341232BB3B477EA6707D16F210970EA384351DBDB6640C95D42B
- MD5 SHA1 SHA512 TLSH