Analysis

  • max time kernel
    122s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    02-12-2021 03:17

General

  • Target

    charge_12.01.2021.doc

  • Size

    33KB

  • MD5

    18499830201cddade8183b8e24fdf30a

  • SHA1

    55c498cf7273cab567f49a00c15ca3316c001215

  • SHA256

    0a42f6762ae4f3b1d95aae0f8977cde6361f1d59b5ccc400c41772db0205f7c5

  • SHA512

    0a59ed2f3491bbd547d3ae543c6efcf965d1da65c02f900b09d6c75afd92dfc98c4182af7392b9d77b79cf0c17fe30d232449396a3a3be14c96b07ce7718928e

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 32 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\charge_12.01.2021.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:2040
    • C:\Windows\SysWOW64\explorer.exe
      explorer youTube.hta
      2⤵
      • Process spawned unexpected child process
      PID:672
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1912
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:808
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Documents\youTube.hta"
        2⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1204
        • C:\Windows\SysWOW64\regsvr32.exe
          "C:\Windows\System32\regsvr32.exe" c:\users\public\dowNext.jpg
          3⤵
            PID:1736

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Defense Evasion

      Modify Registry

      1
      T1112

      Discovery

      System Information Discovery

      1
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\Documents\youTube.hta
        MD5

        55d9eab53d4063a53b6ed05f7b1e75e7

        SHA1

        e6b4c81676d3ef0d2f7d08a6cc2ad90eb54908c3

        SHA256

        c7f40608ce8a3dda25c13d117790d08ef757b07b8c2ccb645a27a71adc322fb2

        SHA512

        e90768d87c7b191d41d3944957725db0e1f29fa865e24fd7308656fc9249ca0a5d1bd0abeda3bbc68528efc0ce6bc3a79eb434c375fd5c6ec90455c6e19a74f9

      • \??\c:\users\public\dowNext.jpg
        MD5

        b5ff4c0f214fdf079ae6d835f046b7c5

        SHA1

        fc1f09a696c92d366e4868a35a5afa79129b12be

        SHA256

        aaf04ecb4c67de5a7833184f5abeec5f48a2fc17bb8167637a421596e00c7e4c

        SHA512

        5dcfa31dd1a704ae698673763a2c3e96f0c7e70d06d4790033b6eccaff7e6a55d7d4f2913649915e1ad430e4fa9c68143d82a95a38c2b0bc315ad91099aeab3a

      • memory/672-59-0x0000000000000000-mapping.dmp
      • memory/672-61-0x000000006AF11000-0x000000006AF13000-memory.dmp
        Filesize

        8KB

      • memory/808-62-0x000007FEFBD11000-0x000007FEFBD13000-memory.dmp
        Filesize

        8KB

      • memory/1204-64-0x0000000000000000-mapping.dmp
      • memory/1736-70-0x0000000000140000-0x0000000000141000-memory.dmp
        Filesize

        4KB

      • memory/1736-67-0x0000000000000000-mapping.dmp
      • memory/1912-65-0x0000000000000000-mapping.dmp
      • memory/2040-55-0x00000000726D1000-0x00000000726D4000-memory.dmp
        Filesize

        12KB

      • memory/2040-58-0x00000000754A1000-0x00000000754A3000-memory.dmp
        Filesize

        8KB

      • memory/2040-57-0x000000005FFF0000-0x0000000060000000-memory.dmp
        Filesize

        64KB

      • memory/2040-56-0x0000000070151000-0x0000000070153000-memory.dmp
        Filesize

        8KB

      • memory/2040-71-0x000000005FFF0000-0x0000000060000000-memory.dmp
        Filesize

        64KB