Analysis

  • max time kernel
    106s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 02:54

General

  • Target

    08b2447843c17b0a208a21947b331dffcee0baa9bd0d5d859b76a9cf0c432392.xls

  • Size

    96KB

  • MD5

    2cccc0961e103aa986602a279d6242e8

  • SHA1

    7c3d3a1d5d7f84baaf83068fcf6075c0cc675510

  • SHA256

    08b2447843c17b0a208a21947b331dffcee0baa9bd0d5d859b76a9cf0c432392

  • SHA512

    04cad608a49dccdc527bc8ca594f92441c42cf10dd56ab1365836bbe71367d28cd662a05b636bbee0b303138245dfbe01d12eeee19668f990da77cbae0b61414

  • SSDEEP

    3072:Jd1gxv7yZmspH7+cclKisPI4ukoRWGN6WVbrzQ7ITkFIBAww33XjUJtXwm:X1gxv7yZmspH7+cclKisPI4ukoRWGNc+

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\08b2447843c17b0a208a21947b331dffcee0baa9bd0d5d859b76a9cf0c432392.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:1452
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1424
      • 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:1192
        • C:\Windows\SysWOW64\attrib.exe
          attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
          3⤵
          • Views/modifies file attributes
          PID:560
      • 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:408
      • 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:768

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Hidden Files and Directories

    1
    T1158

    Defense Evasion

    Modify Registry

    1
    T1112

    Hidden Files and Directories

    1
    T1158

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/408-90-0x0000000000000000-mapping.dmp
    • memory/560-92-0x0000000000000000-mapping.dmp
    • memory/768-91-0x0000000000000000-mapping.dmp
    • memory/1192-89-0x0000000000000000-mapping.dmp
    • memory/1424-60-0x000007FEFBC61000-0x000007FEFBC63000-memory.dmp
      Filesize

      8KB

    • memory/1424-59-0x0000000000000000-mapping.dmp
    • memory/1452-64-0x00000000008A1000-0x00000000008A4000-memory.dmp
      Filesize

      12KB

    • memory/1452-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1452-63-0x00000000008A1000-0x00000000008A4000-memory.dmp
      Filesize

      12KB

    • memory/1452-62-0x00000000008A1000-0x00000000008A4000-memory.dmp
      Filesize

      12KB

    • memory/1452-65-0x00000000008A1000-0x00000000008A4000-memory.dmp
      Filesize

      12KB

    • memory/1452-66-0x00000000008A1000-0x00000000008A4000-memory.dmp
      Filesize

      12KB

    • memory/1452-54-0x000000002F651000-0x000000002F654000-memory.dmp
      Filesize

      12KB

    • memory/1452-58-0x0000000075041000-0x0000000075043000-memory.dmp
      Filesize

      8KB

    • memory/1452-57-0x00000000724ED000-0x00000000724F8000-memory.dmp
      Filesize

      44KB

    • memory/1452-61-0x00000000008A1000-0x00000000008A4000-memory.dmp
      Filesize

      12KB

    • memory/1452-55-0x0000000071501000-0x0000000071503000-memory.dmp
      Filesize

      8KB

    • memory/1452-93-0x00000000008A1000-0x00000000008A4000-memory.dmp
      Filesize

      12KB

    • memory/1452-94-0x00000000008A1000-0x00000000008A4000-memory.dmp
      Filesize

      12KB

    • memory/1452-95-0x00000000008A1000-0x00000000008A4000-memory.dmp
      Filesize

      12KB

    • memory/1452-97-0x00000000008A1000-0x00000000008A4000-memory.dmp
      Filesize

      12KB

    • memory/1452-96-0x00000000008A1000-0x00000000008A4000-memory.dmp
      Filesize

      12KB

    • memory/1452-98-0x00000000008A1000-0x00000000008A4000-memory.dmp
      Filesize

      12KB

    • memory/1452-99-0x00000000724ED000-0x00000000724F8000-memory.dmp
      Filesize

      44KB

    • memory/1452-100-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1452-101-0x00000000724ED000-0x00000000724F8000-memory.dmp
      Filesize

      44KB