Analysis

  • max time kernel
    150s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-01-2023 19:21

General

  • Target

    635f07941b083edd117f2a18bc3ea6b10bc6a3fddfc76ad066ae3b736b76fe98.xls

  • Size

    35KB

  • MD5

    5092cdcd2c79cacca713c5e217c18a9d

  • SHA1

    079e6db81a82873c39cf90ad4350c7dd87d52756

  • SHA256

    635f07941b083edd117f2a18bc3ea6b10bc6a3fddfc76ad066ae3b736b76fe98

  • SHA512

    906c13612750d2f841563a8b78813308911d7c5714e92e0e9a339ab1dc71e4e9508f698a4a89fd9cc7e6315f7caaea6847f65ced3c5a7db3bab5674d42c4685a

  • SSDEEP

    768:TPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJA5ebA9uSynVWENU:Lok3hbdlylKsgqopeJBWhZFGkE+cL2NR

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 SetWindowsHookEx 14 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\635f07941b083edd117f2a18bc3ea6b10bc6a3fddfc76ad066ae3b736b76fe98.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5028
    • C:\Windows\explorer.exe
      explorer.exe C:\Users\Public\Documents\H9Avlu.vbs
      2⤵
      • Process spawned unexpected child process
      PID:3616
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2172
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\H9Avlu.vbs"
      2⤵
        PID:2768

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Public\Documents\H9Avlu.vbs
      Filesize

      544B

      MD5

      6dd35fb717a33823a59666e5f96e64bc

      SHA1

      09f53c4bf19b905bef980d3637dd6f0e73845483

      SHA256

      e7c45545794facfd8b32c3b11cfe80bfb1a281cf8033e9bb756e958313801b4f

      SHA512

      de126bde69b8991ded9aac5a6da1def8af9f48de362e62d169e0b1586b17dc5ef8eb171cad15c2d5e34d2fd35a0cd5ba6aeba317f02b1fa8d5d257a0910eba95

    • memory/2768-141-0x0000000000000000-mapping.dmp
    • memory/3616-139-0x0000000000000000-mapping.dmp
    • memory/5028-132-0x00007FF9A63F0000-0x00007FF9A6400000-memory.dmp
      Filesize

      64KB

    • memory/5028-133-0x00007FF9A63F0000-0x00007FF9A6400000-memory.dmp
      Filesize

      64KB

    • memory/5028-134-0x00007FF9A63F0000-0x00007FF9A6400000-memory.dmp
      Filesize

      64KB

    • memory/5028-135-0x00007FF9A63F0000-0x00007FF9A6400000-memory.dmp
      Filesize

      64KB

    • memory/5028-136-0x00007FF9A63F0000-0x00007FF9A6400000-memory.dmp
      Filesize

      64KB

    • memory/5028-137-0x00007FF9A4260000-0x00007FF9A4270000-memory.dmp
      Filesize

      64KB

    • memory/5028-138-0x00007FF9A4260000-0x00007FF9A4270000-memory.dmp
      Filesize

      64KB