Analysis
- max time kernel
148s - max time network
128s - 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, 10:45
Behavioral task
behavioral1
Sample
attachment20261002-278819-bykaym.xlsm
Resource
win10v2004-20260911-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
attachment20261002-278819-bykaym.xlsm
Resource
win11ltsc2024-20260911-en
8 signatures
150 seconds
General
- Target attachment20261002-278819-bykaym.xlsm
- Size 555KB
- Sample261002-mtp63a1vcs
- 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 3024 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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\05E95E00\:Zone.Identifier:$DATA EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3024 EXCEL.EXE - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3024 EXCEL.EXE 3024 EXCEL.EXE - Suspicious use of SetWindowsHookEx 11 IoCs
pid Process 3024 EXCEL.EXE 3024 EXCEL.EXE 3024 EXCEL.EXE 3024 EXCEL.EXE 3024 EXCEL.EXE 3024 EXCEL.EXE 3024 EXCEL.EXE 3024 EXCEL.EXE 3024 EXCEL.EXE 3024 EXCEL.EXE 3024 EXCEL.EXE - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3024 wrote to memory of 1288 3024 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-bykaym.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:3024 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:1288
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:2820
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\05E95E00
- Size 550KB
- SHA256 72dd397581f08e5243075321cc5a668a29f696bcb0d5a77e19be2b554208dca9
- MD5 3e9a4055512adefa2a1b02fa4dfc5d55
- SHA1 74c3a011db7e817fd1c8f8d2b857ca6f126c437f
- SHA512 912b40eafd97a1e83ec3bddffe9cbe4258222d659c24e0baeb8bf28cc2333f48f91c8f0ad4a0c71093482d4e2f2619a8a66cf1dcd2d0c80c5997db8eae87bdb2
- SSDEEP 12288:xYeJ04VK6trFlaX4pmUEo1V3rol/AWkKmQHfp:bJRVz1PpmUEexe//hp
- TLSH T15EC4121AD9588C38D2CA98B8D29E80F141675E459637960F30DCE9584B877FB0ECF2ED
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\LJE9HO3YULDPA6JNL8YU.temp
- Size 1KB
- SHA256 bcec1819f8fa1bbe7f186ed54a66925d20bb32880d59388aed5c065558989f9e
- MD5 8995b743579977375e8b050c7cd96899
- SHA1 acf463f3171e78300c9cba5ead03fb40bbcf3cdb
- SHA512 9b6e66250273ef86ecd4f5559b4619740b73e47b10836a3307e0fef2b5402cf75babd4ae02bba7bfdd23d19e51da3b74361a817059e23995c430984c85a41895
- TLSH T18521F0401AE71E2FE86183756B37431AE6307C126E05532EDA47D13E2D7D800CD9FA9B
- MD5 SHA1 SHA512 TLSH