Analysis

  • max time kernel
    217s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 21:40

General

  • Target

    4c791d9c64df3445828aca48ee3a81f29d759815f140c4acd25a42d89bffb697.doc

  • Size

    61KB

  • MD5

    3d15197c7672fd753d1f1ef1b9d5b404

  • SHA1

    fef7cc01e94419258ea170bc7a3437da39cf7463

  • SHA256

    4c791d9c64df3445828aca48ee3a81f29d759815f140c4acd25a42d89bffb697

  • SHA512

    a6c102746668a2d0f00118588562b31ca1a615b2e8bb06229dd149ae62eb7e056cf49da1a615060020fe3f62b9011bb65a27790281a91b63e9f66b3378a39fdf

  • SSDEEP

    768:k+Si57Uk9D8WyLCr3Pyf3Mrg+UjXenepOaZciYnTvBY:MHkmWQm3PyOQOaZ8nl

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.

  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\4c791d9c64df3445828aca48ee3a81f29d759815f140c4acd25a42d89bffb697.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1496
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c c:\Users\Admin\AppData\Local\Temp\adobeacd-update.bat
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1628
      • C:\Windows\SysWOW64\PING.EXE
        ping 1.1.2.2 -n 2
        3⤵
        • Runs ping.exe
        PID:1724
      • C:\Windows\SysWOW64\chcp.com
        chcp 1251
        3⤵
          PID:1748
        • C:\Windows\SysWOW64\cscript.exe
          cscript.exe "c:\Users\Admin\AppData\Local\Temp\adobeacd-update"".""v""bs"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1456
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -ExecutionPolicy bypass -noprofile -file C:\Users\Admin\AppData\Local\Temp\adobeacd-update.ps1
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1260

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • \??\c:\Users\Admin\AppData\Local\Temp\adobeacd-update.bat
      Filesize

      207B

      MD5

      bcee45f249102dd87bc0445925e1dc65

      SHA1

      5652e6a5aa3178329def77f50e54529997e0cfad

      SHA256

      84b6d24219105e86f42329300278bbefa03ff6b40116123f3d19ff3c20f6ec9a

      SHA512

      c6290cc42bc452ce9d4bd284909da7f735d571dedf98e55809c1d91b0272db2a09e76865f2f476a7a2a1833126920ed7f2f9fab5d400bf2d0fb0ff381b432480

    • \??\c:\Users\Admin\AppData\Local\Temp\adobeacd-update.vbs
      Filesize

      355B

      MD5

      31b68eb4af8a0a939dbff53a9355e130

      SHA1

      a64374be6f7a90ac04c77e54162b93b95066c791

      SHA256

      a2daedce3a9b0abaf3b246b016e4f39a7ba00dec7dbad35134668c2fa336eae5

      SHA512

      83d7b3599dcf947fcda88fe21156b8bea5f2e04bf9a56058553261e9fe3fed8f886fd8df6e211a0921555a510b6e6de224aef99c57d55be0f5b54eb1a727f4b5

    • memory/1260-67-0x0000000000000000-mapping.dmp
    • memory/1260-70-0x000000006ADB0000-0x000000006B35B000-memory.dmp
      Filesize

      5.7MB

    • memory/1260-69-0x000000006ADB0000-0x000000006B35B000-memory.dmp
      Filesize

      5.7MB

    • memory/1456-64-0x0000000000000000-mapping.dmp
    • memory/1496-55-0x0000000070881000-0x0000000070883000-memory.dmp
      Filesize

      8KB

    • memory/1496-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1496-57-0x0000000075FF1000-0x0000000075FF3000-memory.dmp
      Filesize

      8KB

    • memory/1496-58-0x000000007186D000-0x0000000071878000-memory.dmp
      Filesize

      44KB

    • memory/1496-59-0x000000007186D000-0x0000000071878000-memory.dmp
      Filesize

      44KB

    • memory/1496-54-0x0000000072E01000-0x0000000072E04000-memory.dmp
      Filesize

      12KB

    • memory/1628-60-0x0000000000000000-mapping.dmp
    • memory/1724-62-0x0000000000000000-mapping.dmp
    • memory/1748-63-0x0000000000000000-mapping.dmp