Analysis

  • max time kernel
    138s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 14:01

General

  • Target

    c827c06b8d0656a0885398577a150e3e9a5a34aa8d7902693f599e13638c4d4d.xls

  • Size

    109KB

  • MD5

    60c38b854d589f183efb61a4a35417c8

  • SHA1

    9eef3058c4293e6d38e06b284b8438e6bac73996

  • SHA256

    c827c06b8d0656a0885398577a150e3e9a5a34aa8d7902693f599e13638c4d4d

  • SHA512

    07a9f4f0d8fb84aa536c4c31038367f53539ba026a621f184889f5bfa9620ee4553b595204517be0724b2563792e4c44ec46ff23f0dba550a078aa543e415e21

  • SSDEEP

    3072:MrQn6v7yZmspH7+7alMisPI4ukoRWGNgrG2AEWVbrzr6B7ITkPSyww33XjUJtXw+:CQn6v7yZmspH7+7alMisPI4ukoRWGNgk

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 3 IoCs
  • Suspicious use of WriteProcessMemory 20 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\c827c06b8d0656a0885398577a150e3e9a5a34aa8d7902693f599e13638c4d4d.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:1680
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:580
      • 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:1708
        • C:\Windows\SysWOW64\attrib.exe
          attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
          3⤵
          • Views/modifies file attributes
          PID:1740
      • 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:1496
      • 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:1808

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/580-59-0x0000000000000000-mapping.dmp
    • memory/580-60-0x000007FEFC211000-0x000007FEFC213000-memory.dmp
      Filesize

      8KB

    • memory/1496-222-0x0000000000000000-mapping.dmp
    • memory/1680-386-0x0000000000788000-0x0000000000791000-memory.dmp
      Filesize

      36KB

    • memory/1680-394-0x0000000005610000-0x0000000005710000-memory.dmp
      Filesize

      1024KB

    • memory/1680-57-0x00000000729ED000-0x00000000729F8000-memory.dmp
      Filesize

      44KB

    • memory/1680-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1680-61-0x0000000000788000-0x0000000000791000-memory.dmp
      Filesize

      36KB

    • memory/1680-62-0x0000000000788000-0x0000000000791000-memory.dmp
      Filesize

      36KB

    • memory/1680-271-0x0000000000788000-0x0000000000791000-memory.dmp
      Filesize

      36KB

    • memory/1680-65-0x0000000000788000-0x0000000000791000-memory.dmp
      Filesize

      36KB

    • memory/1680-66-0x0000000000788000-0x0000000000791000-memory.dmp
      Filesize

      36KB

    • memory/1680-64-0x0000000000788000-0x0000000000791000-memory.dmp
      Filesize

      36KB

    • memory/1680-269-0x0000000005610000-0x0000000005710000-memory.dmp
      Filesize

      1024KB

    • memory/1680-55-0x0000000071A01000-0x0000000071A03000-memory.dmp
      Filesize

      8KB

    • memory/1680-395-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1680-270-0x0000000005610000-0x0000000005710000-memory.dmp
      Filesize

      1024KB

    • memory/1680-396-0x00000000729ED000-0x00000000729F8000-memory.dmp
      Filesize

      44KB

    • memory/1680-58-0x00000000765A1000-0x00000000765A3000-memory.dmp
      Filesize

      8KB

    • memory/1680-63-0x0000000000788000-0x0000000000791000-memory.dmp
      Filesize

      36KB

    • memory/1680-272-0x0000000000788000-0x0000000000791000-memory.dmp
      Filesize

      36KB

    • memory/1680-273-0x0000000000788000-0x0000000000791000-memory.dmp
      Filesize

      36KB

    • memory/1680-384-0x0000000000788000-0x0000000000791000-memory.dmp
      Filesize

      36KB

    • memory/1680-385-0x0000000000788000-0x0000000000791000-memory.dmp
      Filesize

      36KB

    • memory/1680-54-0x000000002F431000-0x000000002F434000-memory.dmp
      Filesize

      12KB

    • memory/1680-387-0x0000000005610000-0x0000000005710000-memory.dmp
      Filesize

      1024KB

    • memory/1680-388-0x0000000005610000-0x0000000005710000-memory.dmp
      Filesize

      1024KB

    • memory/1680-389-0x0000000005610000-0x0000000005710000-memory.dmp
      Filesize

      1024KB

    • memory/1680-390-0x0000000005610000-0x0000000005710000-memory.dmp
      Filesize

      1024KB

    • memory/1680-391-0x0000000005610000-0x0000000005710000-memory.dmp
      Filesize

      1024KB

    • memory/1680-392-0x00000000729ED000-0x00000000729F8000-memory.dmp
      Filesize

      44KB

    • memory/1680-393-0x0000000005610000-0x0000000005710000-memory.dmp
      Filesize

      1024KB

    • memory/1708-221-0x0000000000000000-mapping.dmp
    • memory/1740-224-0x0000000000000000-mapping.dmp
    • memory/1808-223-0x0000000000000000-mapping.dmp