Analysis

  • max time kernel
    108s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2022, 08:08

General

  • Target

    0a3ab78ad9de81e837a7cddfbbb9464c51f26b080e9f8f0a58c49a81c2877987.xls

  • Size

    93KB

  • MD5

    2f29cfa0f0854948912c2853e53fcee0

  • SHA1

    31d4752285fa6b578c21ca5d48c9cd22bbed8d05

  • SHA256

    0a3ab78ad9de81e837a7cddfbbb9464c51f26b080e9f8f0a58c49a81c2877987

  • SHA512

    6a2b4632f484b0192494c873a5bea2cc08090cdd777292f5fc1ef10a3172a0758c670cec0177a556a7e7a8679a29a2e7779715fb952c5895571e37b24eafe052

  • SSDEEP

    1536:6IIIIJ0qXbjSty68D2SBYhCl2zh1gxv7yZmspH7+cclKiEZClsQ6NqTBun5oeMtk:Hh1gxv7yZmspH7+cclKisQ6NqTBun5ow

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 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\0a3ab78ad9de81e837a7cddfbbb9464c51f26b080e9f8f0a58c49a81c2877987.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:576
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1928
      • 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:1416
        • C:\Windows\SysWOW64\attrib.exe
          attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
          3⤵
          • Views/modifies file attributes
          PID:656
      • 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:972
      • 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:1688

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • memory/576-270-0x00000000004A9000-0x00000000004AC000-memory.dmp

            Filesize

            12KB

          • memory/576-384-0x00000000004A9000-0x00000000004AC000-memory.dmp

            Filesize

            12KB

          • memory/576-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/576-57-0x000000007278D000-0x0000000072798000-memory.dmp

            Filesize

            44KB

          • memory/576-58-0x0000000075911000-0x0000000075913000-memory.dmp

            Filesize

            8KB

          • memory/576-387-0x000000007278D000-0x0000000072798000-memory.dmp

            Filesize

            44KB

          • memory/576-386-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/576-61-0x00000000004A9000-0x00000000004AC000-memory.dmp

            Filesize

            12KB

          • memory/576-62-0x00000000004A9000-0x00000000004AC000-memory.dmp

            Filesize

            12KB

          • memory/576-63-0x00000000004A9000-0x00000000004AC000-memory.dmp

            Filesize

            12KB

          • memory/576-64-0x00000000004A9000-0x00000000004AC000-memory.dmp

            Filesize

            12KB

          • memory/576-65-0x00000000004A9000-0x00000000004AC000-memory.dmp

            Filesize

            12KB

          • memory/576-55-0x00000000717A1000-0x00000000717A3000-memory.dmp

            Filesize

            8KB

          • memory/576-66-0x00000000004A9000-0x00000000004AC000-memory.dmp

            Filesize

            12KB

          • memory/576-54-0x000000002F7D1000-0x000000002F7D4000-memory.dmp

            Filesize

            12KB

          • memory/576-385-0x000000007278D000-0x0000000072798000-memory.dmp

            Filesize

            44KB

          • memory/576-383-0x00000000004A9000-0x00000000004AC000-memory.dmp

            Filesize

            12KB

          • memory/576-271-0x00000000004A9000-0x00000000004AC000-memory.dmp

            Filesize

            12KB

          • memory/576-382-0x00000000004A9000-0x00000000004AC000-memory.dmp

            Filesize

            12KB

          • memory/576-269-0x00000000004A9000-0x00000000004AC000-memory.dmp

            Filesize

            12KB

          • memory/1928-60-0x000007FEFBF01000-0x000007FEFBF03000-memory.dmp

            Filesize

            8KB