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, 09:48
Behavioral task
behavioral1
Sample
attachment20261002-278819-y38fww.xlsm
Resource
win10v2004-20260911-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
attachment20261002-278819-y38fww.xlsm
Resource
win11ltsc2024-20260911-en
8 signatures
150 seconds
General
- Target attachment20261002-278819-y38fww.xlsm
- Size 555KB
- Sample261002-lswrsavalc
- 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 2020 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\FE295E00\:Zone.Identifier:$DATA EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2020 EXCEL.EXE - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2020 EXCEL.EXE 2020 EXCEL.EXE - Suspicious use of SetWindowsHookEx 11 IoCs
pid Process 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE 2020 EXCEL.EXE - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2020 wrote to memory of 4124 2020 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-y38fww.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:2020 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:4124
-
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:5244
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\FE295E00
- Size 550KB
- SHA256 059f71206012102907fb72fcceb39bf56aad87b668f27f15aa27a05cc4a34849
- MD5 cc8a35e176f4826195060f291a3bf4aa
- SHA1 1dba823a0324b218c88ea057412280e92eee7ae5
- SHA512 f902b8f81453e203facd3ece8b82cbcdbb8c19ab0cbe8000c1aaf0b26407c49621b66dd831314cc39b1d442a32848ebfed55cf65683615abe103c62ec05e2917
- SSDEEP 12288:UYeJ04VK6trFlaX4pmUEo1V3rol/AWkKHQHfTI:GJRVz1PpmUEexe//is
- TLSH T163C4121AD968CC38D2C9D8B8D29E90E140665A55D637960B30DCF9484B877FB0ECF2ED
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\WCUYO1IYW6XTRPFME89R.temp
- Size 1KB
- SHA256 e6fb7dd0a90242b3f19aa0d7aa1d00f4f51197e799e31cbfb793ed5ad485329a
- MD5 3c762b247e4ca1fcb6db9aee9f2044cf
- SHA1 3ea95001da431d5a13851276f07f0081b681cd2c
- SHA512 413d3d58665a9d6db7a83cabf40f7003e19f839c53e8fe785ae470013345747476ddc07c44dc5e7a8ac42a4f0458d4789150c9190ab8ac98648ac2fe304abd47
- TLSH T18A21C9031F9B0FABC07406B5657F872AF3343D06DB5C934F95C8823BADAAA419914F1A
- MD5 SHA1 SHA512 TLSH