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Analysis

  • max time kernel
    100s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/12/2023, 06:35

General

  • Target

    cc31c5d769e28c33b79dfb1c2b6cbea6.xls

  • Size

    317KB

  • MD5

    cc31c5d769e28c33b79dfb1c2b6cbea6

  • SHA1

    c796c4c1878053f2e5ec3b70bdd84b304d1c4c30

  • SHA256

    48c8327b8fa0bd5e233a28148952aacad1180803bd004d344321eadc6c710479

  • SHA512

    dfd4d3ac4510b67bef8fcc4730c7d625b3860139859e82a5bf417a12ea2b438f88e7b46cc470378eda0fb75d37892e944ae925bfc9a3d030f4cd93003576f45e

  • SSDEEP

    6144:wz+dIDeVH2K6CLNBYxDjYl76c2bOAGriOQR6pxHkOn:sDVVzGrKR6

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.

  • Suspicious Office macro 1 IoCs

    Office document equipped with 4.0 macros.

  • 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 13 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\cc31c5d769e28c33b79dfb1c2b6cbea6.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2544
    • 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:3848
    • 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:2472
    • 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
      PID:2332
  • C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    1⤵
    • Views/modifies file attributes
    PID:2020

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2544-2-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

    Filesize

    64KB

  • memory/2544-1-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-11-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-15-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-17-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-19-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-20-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-18-0x00007FFBA06D0000-0x00007FFBA06E0000-memory.dmp

    Filesize

    64KB

  • memory/2544-16-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-36-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-13-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-12-0x00007FFBA06D0000-0x00007FFBA06E0000-memory.dmp

    Filesize

    64KB

  • memory/2544-10-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-7-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-6-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

    Filesize

    64KB

  • memory/2544-4-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

    Filesize

    64KB

  • memory/2544-5-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-3-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-9-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-0-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

    Filesize

    64KB

  • memory/2544-14-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-37-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-50-0x0000023B17100000-0x0000023B180D0000-memory.dmp

    Filesize

    15.8MB

  • memory/2544-60-0x0000023B17100000-0x0000023B180D0000-memory.dmp

    Filesize

    15.8MB

  • memory/2544-64-0x0000023B17100000-0x0000023B180D0000-memory.dmp

    Filesize

    15.8MB

  • memory/2544-67-0x0000023B11E20000-0x0000023B12620000-memory.dmp

    Filesize

    8.0MB

  • memory/2544-71-0x0000023B11E20000-0x0000023B12620000-memory.dmp

    Filesize

    8.0MB

  • memory/2544-76-0x0000023B11E20000-0x0000023B12620000-memory.dmp

    Filesize

    8.0MB

  • memory/2544-74-0x0000023B11E20000-0x0000023B12620000-memory.dmp

    Filesize

    8.0MB

  • memory/2544-89-0x0000023B11E20000-0x0000023B12620000-memory.dmp

    Filesize

    8.0MB

  • memory/2544-80-0x0000023B17100000-0x0000023B180D0000-memory.dmp

    Filesize

    15.8MB

  • memory/2544-8-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

    Filesize

    64KB

  • memory/2544-70-0x0000023B11E20000-0x0000023B12620000-memory.dmp

    Filesize

    8.0MB

  • memory/2544-141-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

    Filesize

    2.0MB

  • memory/2544-140-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

    Filesize

    64KB

  • memory/2544-139-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

    Filesize

    64KB

  • memory/2544-138-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

    Filesize

    64KB

  • memory/2544-137-0x00007FFBA2950000-0x00007FFBA2960000-memory.dmp

    Filesize

    64KB