Analysis
- max time kernel
148s - max time network
146s - 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, 13:04
Behavioral task
behavioral1
Sample
attachment20261002-278819-iavci1.xlsm
Resource
win10v2004-20260911-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
attachment20261002-278819-iavci1.xlsm
Resource
win11ltsc2024-20260911-en
8 signatures
150 seconds
General
- Target attachment20261002-278819-iavci1.xlsm
- Size 555KB
- Sample261002-qa82lstejg
- 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 2888 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\1E2A5E00\:Zone.Identifier:$DATA EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2888 EXCEL.EXE - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2888 EXCEL.EXE 2888 EXCEL.EXE - Suspicious use of SetWindowsHookEx 11 IoCs
pid Process 2888 EXCEL.EXE 2888 EXCEL.EXE 2888 EXCEL.EXE 2888 EXCEL.EXE 2888 EXCEL.EXE 2888 EXCEL.EXE 2888 EXCEL.EXE 2888 EXCEL.EXE 2888 EXCEL.EXE 2888 EXCEL.EXE 2888 EXCEL.EXE - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2888 wrote to memory of 3708 2888 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-iavci1.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:2888 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:3708
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:5400
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:1800
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\1E2A5E00
- Size 550KB
- SHA256 aaac60eac8a9164e8a9cba52f93d5a0ed79e9a29c78277e3b55fd5eb865237a1
- MD5 f8b951ceca467d2ce03d98d48a8fe1ce
- SHA1 a4d7686176b04300e55df8413d7b0c0757f95d2e
- SHA512 09ed185bfba57c56d7cb698db19194f2ba3a3ef4d3d1051d5c9bbd0b3583c27f65090724bea48003618e03dba4f41cf52ea3cdcd2f005de40342afb0cb155196
- SSDEEP 12288:QYeJ04VK6trFlaX4pmUEo1V3rol/AWkKTEQHfj:aJRVz1PpmUEexe//nj
- TLSH T1D5C4121ADD68CC38D2C99878D28E90F141665A459637960F34DCE9484B877FB0ECF2EE
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\NMACSUD4JQ9C6N8H7Y8B.temp
- Size 663B
- SHA256 2e05a34139b4779ac9c283a20904e853c4a2029805b544bc219bbb29e5205c4b
- MD5 198c6ce40e7f9b22a219f3a45cae282a
- SHA1 824e53d51f79da3d96ebfa3c21d21831ca7dd774
- SHA512 54b6616f8ee88aa460bca0fca3f0a47e895368e6ed103b9912966cccac7c326a2c75b4642b69e20a5dd96f0a1f562defd7ddbe863d398f82e54d414bece82eee
- TLSH T1460181310A475F5ED09543365A29474DE3307C024A45A35EA1C8511BFC6BA409659AEA
- MD5 SHA1 SHA512 TLSH