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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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, 06:16

General

  • Target

    caef107cfedd9ee277c0d9091c8cc3d9.xls

  • Size

    36KB

  • MD5

    caef107cfedd9ee277c0d9091c8cc3d9

  • SHA1

    b59c754f5b4cc12ea81e7786a528b640cc273528

  • SHA256

    a2057ca36d8ba7ee7863ebdc53a99d09a3903f4f92f0a524b0943d8b75cbef5a

  • SHA512

    ce9fb85d135dd268edd97f72455b8cc3e4cebbe8fd552e06777018264079ff149347177359edfdef9f728e79d7afcf8b2c75b82f8c182cb084ad03d7668ee43e

  • SSDEEP

    768:RPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJ1QTk8Pv89uhTeox:Zok3hbdlylKsgqopeJBWhZFGkE+cL2NX

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 4 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\caef107cfedd9ee277c0d9091c8cc3d9.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:5068
    • C:\Windows\explorer.exe
      explorer.exe C:\Users\Public\Documents\z1gz.vbs
      2⤵
      • Process spawned unexpected child process
      PID:2688
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2292
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\z1gz.vbs"
      2⤵
        PID:3648

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/5068-0-0x00007FF9F4D90000-0x00007FF9F4DA0000-memory.dmp

      Filesize

      64KB

    • memory/5068-1-0x00007FF9F4D90000-0x00007FF9F4DA0000-memory.dmp

      Filesize

      64KB

    • memory/5068-2-0x00007FF9F4D90000-0x00007FF9F4DA0000-memory.dmp

      Filesize

      64KB

    • memory/5068-3-0x00007FF9F4D90000-0x00007FF9F4DA0000-memory.dmp

      Filesize

      64KB

    • memory/5068-4-0x00007FFA34D10000-0x00007FFA34F05000-memory.dmp

      Filesize

      2.0MB

    • memory/5068-6-0x00007FFA34D10000-0x00007FFA34F05000-memory.dmp

      Filesize

      2.0MB

    • memory/5068-5-0x00007FF9F4D90000-0x00007FF9F4DA0000-memory.dmp

      Filesize

      64KB

    • memory/5068-7-0x00007FFA34D10000-0x00007FFA34F05000-memory.dmp

      Filesize

      2.0MB

    • memory/5068-9-0x00007FF9F2430000-0x00007FF9F2440000-memory.dmp

      Filesize

      64KB

    • memory/5068-13-0x00007FFA34D10000-0x00007FFA34F05000-memory.dmp

      Filesize

      2.0MB

    • memory/5068-16-0x00007FF9F2430000-0x00007FF9F2440000-memory.dmp

      Filesize

      64KB

    • memory/5068-18-0x00007FFA34D10000-0x00007FFA34F05000-memory.dmp

      Filesize

      2.0MB

    • memory/5068-17-0x00007FFA34D10000-0x00007FFA34F05000-memory.dmp

      Filesize

      2.0MB

    • memory/5068-15-0x00007FFA34D10000-0x00007FFA34F05000-memory.dmp

      Filesize

      2.0MB

    • memory/5068-14-0x00007FFA34D10000-0x00007FFA34F05000-memory.dmp

      Filesize

      2.0MB

    • memory/5068-12-0x00007FFA34D10000-0x00007FFA34F05000-memory.dmp

      Filesize

      2.0MB

    • memory/5068-11-0x00007FFA34D10000-0x00007FFA34F05000-memory.dmp

      Filesize

      2.0MB

    • memory/5068-10-0x00007FFA34D10000-0x00007FFA34F05000-memory.dmp

      Filesize

      2.0MB

    • memory/5068-8-0x00007FFA34D10000-0x00007FFA34F05000-memory.dmp

      Filesize

      2.0MB

    • memory/5068-30-0x00007FFA34D10000-0x00007FFA34F05000-memory.dmp

      Filesize

      2.0MB