Analysis
- max time kernel
149s - max time network
139s - 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, 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 3940 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\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE - NTFS ADS 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\E5D85E00\:Zone.Identifier:$DATA EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3940 EXCEL.EXE - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3940 EXCEL.EXE 3940 EXCEL.EXE - Suspicious use of SetWindowsHookEx 11 IoCs
pid Process 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE 3940 EXCEL.EXE - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3940 wrote to memory of 4308 3940 EXCEL.EXE 88
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:3940 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:4308
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:204
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\E5D85E00
- Size 550KB
- SHA256 6b3c37bad71d99152da823a2ed1ea135081f0d1a5c78bbc03fcbce4e8fc01d63
- MD5 4d7ff23d0ce69a52049c2a5b83785bd4
- SHA1 d77cffe06e52d8ead4429d5f587741bd13d02eb6
- SHA512 2a64ee7fd7ef181e61841a760927d2bfdb60564903a0cbd836516ad989f64ca9a80c2e5295572b05b708f2e5f6a721b6dde0552adb0646c2efd33162bef9291e
- SSDEEP 12288:ZYeJ04VK6trFlaX4pmUEo1V3rol/AWkKgp6QHfj:DJRVz1PpmUEexe//k7j
- TLSH T11AC4121ADD58CD38D2CA94B8D29E80F141665A419637960B30DCFA584B877F70ECF2EE
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\T18UFFAQ2C91NE4ZTSPL.temp
- Size 3KB
- SHA256 bea550f25f3ed2834044d091bcba271b455e39b17e8f27ae78c1f6473126938c
- MD5 c05d68f30b6761b22b57fae32ddb1180
- SHA1 2334bb5a7f0f353bb123ad00a1374330e0278495
- SHA512 10a24defebd4523c01d857f945646e4bea3ee6ea259c69b0b4b7a3dfd45f61d82a34fbe277a31c24cbb784c1bbf940cd7c7b93db63b085e93c50c6e9b7d69333
- TLSH T1CD610F031DDB4F6BE06842322B3E437ADB707E169720971D3685350EAFF02548B7DA5A
- MD5 SHA1 SHA512 TLSH