Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 01:09

General

  • Target

    5e2ea28a749eebcda988dd2395c0e205e9f4b2f2edfc14700f317ca62bb91a90.rtf

  • Size

    290KB

  • MD5

    4ae4f406a86fc7990a5e34d40211a8f8

  • SHA1

    0ce1b143ab7190fb04de4e147848cab27123e091

  • SHA256

    5e2ea28a749eebcda988dd2395c0e205e9f4b2f2edfc14700f317ca62bb91a90

  • SHA512

    33af6186570c8b7ea6091079b4b40e48d793c7672f18d5ed4b66a75294dc88d8aebbc2e5a9db815256f673b6efcfbcb9b4727a86569cd1646de6bb3bea5b6224

  • SSDEEP

    6144:owAYwAYwAYwAYwAYwAYwAYwAYwAYwAKqiG1IbZ:o

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 2 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\5e2ea28a749eebcda988dd2395c0e205e9f4b2f2edfc14700f317ca62bb91a90.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:2392
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2532
    • 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:2184

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      20KB

      MD5

      51ce0969e9a3c304cd9703ab05c1288c

      SHA1

      6d5d513b01dbceb59221dda672726016710b3adc

      SHA256

      177fc06ddc9ff02edd438bc4840160942186f9669734d32b4bb0da49d476f7b9

      SHA512

      665e4e8ea185b892618af499c70b31f3b9cc576cf85143dfd5e6ee6c7814ddfc0a4f868db804d5feb68dff5d5c3ae85025139927e5ea4e019e912af00298c27f

    • memory/2392-0-0x000000002FD91000-0x000000002FD92000-memory.dmp

      Filesize

      4KB

    • memory/2392-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2392-2-0x0000000071A4D000-0x0000000071A58000-memory.dmp

      Filesize

      44KB

    • memory/2392-26-0x0000000071A4D000-0x0000000071A58000-memory.dmp

      Filesize

      44KB

    • memory/2392-47-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB