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Analysis

  • max time kernel
    203s
  • max time network
    208s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/12/2023, 03:06

General

  • Target

    4ee4f9d3e300160baa41695bd597a238.xls

  • Size

    177KB

  • MD5

    4ee4f9d3e300160baa41695bd597a238

  • SHA1

    4e81eef7bc19d10207b030c65cd7063c5666103e

  • SHA256

    58c0ea4a770bf33a1d3f359370e9fb7e4542d612f920bd6fd97570f16b7ab30d

  • SHA512

    5704cbcd80c2dc35850659bd0e061243ffab0cf3a0d1e8b33e6e1aea26b421d2ac952052d8ff9f1487a92aeb8d7eb35f98cec1f502c6c62af02a7e069c6d2f91

  • SSDEEP

    3072:b1mXOps/m+vksm2hvUPqFPI4ukoRWGNwzncGAuBrNhBJDBuAWVbrzF7ITkDXbEbR:hmXOps/m+vksm2hvUPqFPI4ukoRWGNwp

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 3 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Views/modifies file attributes 1 TTPs 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\4ee4f9d3e300160baa41695bd597a238.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1164
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:940
      • C:\Windows\system32\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:3276
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:3616
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:2440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1164-0-0x00007FF8EFF30000-0x00007FF8EFF40000-memory.dmp

    Filesize

    64KB

  • memory/1164-1-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-2-0x00007FF8EFF30000-0x00007FF8EFF40000-memory.dmp

    Filesize

    64KB

  • memory/1164-4-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-3-0x00007FF8EFF30000-0x00007FF8EFF40000-memory.dmp

    Filesize

    64KB

  • memory/1164-5-0x00007FF8EFF30000-0x00007FF8EFF40000-memory.dmp

    Filesize

    64KB

  • memory/1164-6-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-8-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-7-0x00007FF8EFF30000-0x00007FF8EFF40000-memory.dmp

    Filesize

    64KB

  • memory/1164-9-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-10-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-11-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-13-0x00007FF8ED890000-0x00007FF8ED8A0000-memory.dmp

    Filesize

    64KB

  • memory/1164-14-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-12-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-15-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-16-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-17-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-18-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-19-0x00007FF8ED890000-0x00007FF8ED8A0000-memory.dmp

    Filesize

    64KB

  • memory/1164-23-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-24-0x00007FF92FEB0000-0x00007FF9300A5000-memory.dmp

    Filesize

    2.0MB

  • memory/1164-38-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-47-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-51-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-55-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-58-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-61-0x000001E1D5AE0000-0x000001E1D6AB0000-memory.dmp

    Filesize

    15.8MB

  • memory/1164-62-0x000001E1D5AE0000-0x000001E1D6AB0000-memory.dmp

    Filesize

    15.8MB

  • memory/1164-63-0x000001E1D5AE0000-0x000001E1D6AB0000-memory.dmp

    Filesize

    15.8MB

  • memory/1164-64-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-65-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-66-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-67-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-68-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-69-0x000001E1D5AE0000-0x000001E1D6AB0000-memory.dmp

    Filesize

    15.8MB

  • memory/1164-70-0x000001E1D5AE0000-0x000001E1D6AB0000-memory.dmp

    Filesize

    15.8MB

  • memory/1164-71-0x000001E1D5AE0000-0x000001E1D6AB0000-memory.dmp

    Filesize

    15.8MB

  • memory/1164-81-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-86-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-93-0x000001E1D5AE0000-0x000001E1D6AB0000-memory.dmp

    Filesize

    15.8MB

  • memory/1164-109-0x000001E1D5AE0000-0x000001E1D6AB0000-memory.dmp

    Filesize

    15.8MB

  • memory/1164-110-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-116-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-117-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB

  • memory/1164-118-0x000001E1D5AE0000-0x000001E1D6AB0000-memory.dmp

    Filesize

    15.8MB

  • memory/1164-119-0x000001E1D5AE0000-0x000001E1D6AB0000-memory.dmp

    Filesize

    15.8MB

  • memory/1164-120-0x000001E1D1820000-0x000001E1D2020000-memory.dmp

    Filesize

    8.0MB