Analysis

  • max time kernel
    102s
  • max time network
    25s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    07-05-2021 08:58

General

  • Target

    order.05.21.doc

  • Size

    79KB

  • MD5

    cbdad0f6accf946029dedfb004713cb7

  • SHA1

    4bba153689f6524004bc99c3b71810125deedbdf

  • SHA256

    db9b93ed6789f9d8c87674fa472bab1f610d3b08afaadf9c8168bad38ca3bdc7

  • SHA512

    0f694a4ffbf35a72c1202c3c1c5d1a6e0d9330651b9c34940e42df772e0a86b589fc566f98367644b122748f7ae6303aec7193e55c358de00c9edd516806b05c

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.

  • Blocklisted process makes network request 1 IoCs
  • 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 10 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 19 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\order.05.21.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:756
    • C:\Windows\SysWOW64\explorer.exe
      explorer c:\users\public\countViewSelect.hta
      2⤵
      • Process spawned unexpected child process
      PID:520
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1248
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2016
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Public\countViewSelect.hta"
        2⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1780
        • C:\Windows\SysWOW64\rundll32.exe
          "C:\Windows\System32\rundll32.exe" c:\users\public\countViewSelect.jpg,PluginInit
          3⤵
            PID:1736

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Public\countViewSelect.hta

        MD5

        a1f07f22e32902cf1c2493e3886e4ee6

        SHA1

        af0d2e3e25b4c406b6f43585a66b2b2e7a4d527c

        SHA256

        1b61d75451a001135e801d87d846f97819c3bb43419d95bacbe5c5593632ffc2

        SHA512

        afe32dc8f0477df39a0f0327eba321a3a37cc114bb8c4e4a4e689038c2cec438a819b29f33c415acf2166197e70ff43363bf11f17be09dd5c711b3dac4df62d7

      • \??\c:\users\public\countViewSelect.jpg

        MD5

        f3c30a8b025a945c02b6c0e3fdb8afcf

        SHA1

        2c61c110a96c417b88c76a8542df38e0aa838af8

        SHA256

        a3d30114219e82f82da1b2d6af07c31d1baa3b7dbef5125560c6156a46d6b967

        SHA512

        085bf7e2a1b64bf10594db6fef5d79e5bcb42fde51235d068f6f9c230c24068c597747b1892ad6d515322c19c379dacb7b99df22e665fe62ff9fca5a4da0f10c

      • memory/520-65-0x000000006AD11000-0x000000006AD13000-memory.dmp

        Filesize

        8KB

      • memory/520-63-0x0000000000000000-mapping.dmp

      • memory/520-64-0x00000000750C1000-0x00000000750C3000-memory.dmp

        Filesize

        8KB

      • memory/756-66-0x0000000005E70000-0x0000000006ABA000-memory.dmp

        Filesize

        12.3MB

      • memory/756-60-0x0000000072201000-0x0000000072204000-memory.dmp

        Filesize

        12KB

      • memory/756-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/756-61-0x000000006FC81000-0x000000006FC83000-memory.dmp

        Filesize

        8KB

      • memory/756-75-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/1248-70-0x0000000000000000-mapping.dmp

      • memory/1736-72-0x0000000000000000-mapping.dmp

      • memory/1780-69-0x0000000000000000-mapping.dmp

      • memory/2016-67-0x000007FEFB701000-0x000007FEFB703000-memory.dmp

        Filesize

        8KB