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, 12:01

General

  • Target
    attachment20261002-278819-cseynx.xlsm
  • Size 555KB
  • Sample261002-n7ccssst7p
  • SHA256 7dc6e3106413ad883680745af653b737bc9ae0b2d2599eeb7ee45aeea3a4494f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Deletes itself 1 TTPs 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 11 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

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-cseynx.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:5052
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:3216
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:1364

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            16695E00

            • Path C:\Users\Admin\AppData\Local\Temp\16695E00
            • Size 550KB
            • SHA256 f6b976796b366cc0fc83bac1d71994e5ddc946cc82eee4b2801963ea2e9dc106
            • MD5 SHA1 SHA512 SSDEEP TLSH

            XOPAV5JO76YWEFLEL7JO.temp

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\XOPAV5JO76YWEFLEL7JO.temp
            • Size 2KB
            • SHA256 c002b835bf21228ebff5d089f815b52464b289201db4d943dfd09c34c2356b18
            • MD5 SHA1 SHA512 TLSH

            memory/5052-16-0x00007FFB9C610000-0x00007FFB9C620000-memory.dmp

            memory/5052-9-0x00007FFBDEF40000-0x00007FFBDF1A3000-memory.dmp

            memory/5052-12-0x00007FFBDEF40000-0x00007FFBDF1A3000-memory.dmp

            memory/5052-15-0x00007FFBDEF40000-0x00007FFBDF1A3000-memory.dmp

            memory/5052-14-0x00007FFB9C610000-0x00007FFB9C620000-memory.dmp

            memory/5052-13-0x00007FFBDEF40000-0x00007FFBDF1A3000-memory.dmp

            memory/5052-11-0x00007FFBDEF40000-0x00007FFBDF1A3000-memory.dmp

            memory/5052-10-0x00007FFBDEF40000-0x00007FFBDF1A3000-memory.dmp

            memory/5052-0-0x00007FFB9F080000-0x00007FFB9F090000-memory.dmp

            memory/5052-7-0x00007FFBDEF40000-0x00007FFBDF1A3000-memory.dmp

            memory/5052-6-0x00007FFBDEF40000-0x00007FFBDF1A3000-memory.dmp

            memory/5052-4-0x00007FFB9F080000-0x00007FFB9F090000-memory.dmp

            memory/5052-2-0x00007FFB9F080000-0x00007FFB9F090000-memory.dmp

            memory/5052-3-0x00007FFBDF09F000-0x00007FFBDF0A0000-memory.dmp

            memory/5052-1-0x00007FFB9F080000-0x00007FFB9F090000-memory.dmp

            memory/5052-8-0x00007FFBDEF40000-0x00007FFBDF1A3000-memory.dmp

            memory/5052-55-0x00007FFBDEF40000-0x00007FFBDF1A3000-memory.dmp

            memory/5052-5-0x00007FFB9F080000-0x00007FFB9F090000-memory.dmp