Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    13-10-2021 22:45

General

  • Target

    f9e93efc4b1327a0d22b6666af3f3b2e0c91c460c2c75c6a76380779cfebd972.doc

  • Size

    69KB

  • MD5

    6b4e49172557753be4a506d1647d45d8

  • SHA1

    63da363f5ab6eae78b9305a0b077250226860bca

  • SHA256

    f9e93efc4b1327a0d22b6666af3f3b2e0c91c460c2c75c6a76380779cfebd972

  • SHA512

    247fad1b2e3f09b13100796b98547c4bac457b05f5ea84ab66be0c3c8a1104c2dfb1263ea31b9e64b342cabf6be9a3d19604bc3e6c84086b9cc2048bf03768d2

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
  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 8 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\f9e93efc4b1327a0d22b6666af3f3b2e0c91c460c2c75c6a76380779cfebd972.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:1740
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\users\public\carolineKingSea.hta"
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Modifies Internet Explorer settings
      PID:1368
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1920

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

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    Downloads

    • C:\users\public\carolineKingSea.hta
      MD5

      576937bce3977cbd2848ef21f1898110

      SHA1

      1eb843c2e4005c6333162bd1fa79dd0ca1fb9045

      SHA256

      9887099e16955ec40cfbb1ba4f07e0458d4688adb8111e40009965b6b95da1a7

      SHA512

      a925ebc2f04e29918c42f6d38fec35189742dcf60c6756b1a214a823032e50fc525d05d9915758d201f62332b187eb40d9b98754d7aade1e376c099d3c78e474

    • memory/1368-57-0x0000000000000000-mapping.dmp
    • memory/1740-53-0x0000000072F51000-0x0000000072F54000-memory.dmp
      Filesize

      12KB

    • memory/1740-54-0x00000000709D1000-0x00000000709D3000-memory.dmp
      Filesize

      8KB

    • memory/1740-55-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1740-56-0x00000000765A1000-0x00000000765A3000-memory.dmp
      Filesize

      8KB

    • memory/1740-61-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1920-59-0x0000000000000000-mapping.dmp
    • memory/1920-60-0x000007FEFC461000-0x000007FEFC463000-memory.dmp
      Filesize

      8KB