Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    10-04-2024 10:36

General

  • Target

    NewCovid-21/Statistic.rtf

  • Size

    4.0MB

  • MD5

    44697aad796c0d82c1adbee15fd1266b

  • SHA1

    0349463deb6e3803c425fa7725f7dedaccc6e6aa

  • SHA256

    9803e65afa5b8eef0b6f7ced42ebd15f979889b791b8eadfc98e7f102853451a

  • SHA512

    90cefab17ed24cc078a5cb71ae28b499e8583118566b2f59d6feae693d114468c292ecabdb7ddd7721a0a4c8e1af044513007e2804993b33e4eb18c0f7b83107

  • SSDEEP

    98304:bJKhJ80JKhJ80JKhJ80JKhJ80JKhJ80JKhJ80JKhJ80JKhJ80JKhJ80JKhJ80JKV:bJKk0JKk0JKk0JKk0JKk0JKk0JKk0JKW

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 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\NewCovid-21\Statistic.rtf"
    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:948
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2184
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Launches Equation Editor
      PID:2236

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

      Filesize

      20KB

      MD5

      bf8d8659db7294719cfef55f33d3ac6d

      SHA1

      4a78691bb40ea4d8e2bb8a35e4437b5bed5a3da7

      SHA256

      0f7278e5d53e42394cde9828213c5a2eab7cb19577033dd98afdc03030d48cba

      SHA512

      e26f4de506c6ce97666d0fd05e5ef36535245a336eb8a013d13cca86f76a13b6783e09a13a0cd0cb25cf34ae7063de1e546867ea02c802431e21caae7cc3e3e8

    • memory/948-0-0x000000002FDB1000-0x000000002FDB2000-memory.dmp

      Filesize

      4KB

    • memory/948-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/948-2-0x0000000071A4D000-0x0000000071A58000-memory.dmp

      Filesize

      44KB

    • memory/948-13-0x0000000071A4D000-0x0000000071A58000-memory.dmp

      Filesize

      44KB

    • memory/948-34-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB