Analysis

  • max time kernel
    110s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    06/12/2022, 17:13

General

  • Target

    a007164d5bb57cdf7f5f4d8e2761068b.xls

  • Size

    98KB

  • MD5

    a007164d5bb57cdf7f5f4d8e2761068b

  • SHA1

    6ba9f166d070a4a6d5caa3db257da10b4d71fd5c

  • SHA256

    0d3d5daed95de6b7a91443dd4c5d498a27042669031ef92a8eea05b60ca97dc8

  • SHA512

    87af631745d95f7748de4c2786aeea7b52b3ef5eafe3aa33c5cebd6f01fc3361904cf1ba6fad0b7ec3fe23f1a3867b86d2369a8c5e856bfe768e73fbd3fe9dae

  • SSDEEP

    1536:dvvvvbnqG17Nu1tZsWmNWVbrzuU67ITkR62l2M88SIJtXwR/M2M/MuRO:7ZWVbrzQ7ITk99j1JtXw25kqO

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.

  • Deletes itself 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\a007164d5bb57cdf7f5f4d8e2761068b.xls
    1⤵
    • Deletes itself
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Windows\SysWOW64\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:832
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1528
    • C:\Windows\SysWOW64\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:1540
    • C:\Windows\SysWOW64\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:684

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2044-78-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-74-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-63-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-61-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-60-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-59-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-65-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-66-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-64-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-67-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-70-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-69-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-68-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-73-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-76-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-72-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-71-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-77-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-62-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-54-0x000000002F8D1000-0x000000002F8D4000-memory.dmp

          Filesize

          12KB

        • memory/2044-85-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-81-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-82-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-80-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-79-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-75-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-86-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-84-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-83-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-87-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-109-0x00000000003B5000-0x00000000003BE000-memory.dmp

          Filesize

          36KB

        • memory/2044-58-0x0000000075511000-0x0000000075513000-memory.dmp

          Filesize

          8KB

        • memory/2044-57-0x00000000727BD000-0x00000000727C8000-memory.dmp

          Filesize

          44KB

        • memory/2044-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/2044-222-0x00000000003BC000-0x00000000003BE000-memory.dmp

          Filesize

          8KB

        • memory/2044-55-0x00000000717D1000-0x00000000717D3000-memory.dmp

          Filesize

          8KB

        • memory/2044-224-0x00000000727BD000-0x00000000727C8000-memory.dmp

          Filesize

          44KB

        • memory/2044-385-0x00000000003BC000-0x00000000003BE000-memory.dmp

          Filesize

          8KB

        • memory/2044-386-0x00000000003BC000-0x00000000003BE000-memory.dmp

          Filesize

          8KB

        • memory/2044-388-0x00000000727BD000-0x00000000727C8000-memory.dmp

          Filesize

          44KB