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Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    05/10/2024, 01:44

General

  • Target

    b78e040c0d63061f8a66e423ec0aa2fa7f1d3d6c5a488d147493d9d9ea9247f8.rtf

  • Size

    712KB

  • MD5

    efcf0612773c1c48d6079a7636fdd2e5

  • SHA1

    a36a0b6f409f22fad0f463cef075f52ebad17e67

  • SHA256

    b78e040c0d63061f8a66e423ec0aa2fa7f1d3d6c5a488d147493d9d9ea9247f8

  • SHA512

    e0410e38534f4822056166726e374119a470e87a4e3c1b1b456d6f040888e1c6b95d177b486314f0663bec259c61e15194a423153001d0e567e16cc0c4ef183a

  • SSDEEP

    6144:BwAYwAmu+zZBG91o9zdmLlvtVFZkI1vJED0CsA/HkK:p

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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.

  • 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\b78e040c0d63061f8a66e423ec0aa2fa7f1d3d6c5a488d147493d9d9ea9247f8.rtf"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2984
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2720
    • 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
      • System Location Discovery: System Language Discovery
      • Launches Equation Editor
      PID:2912

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2984-0-0x000000002F411000-0x000000002F412000-memory.dmp

      Filesize

      4KB

    • memory/2984-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2984-2-0x000000007124D000-0x0000000071258000-memory.dmp

      Filesize

      44KB

    • memory/2984-4-0x000000007124D000-0x0000000071258000-memory.dmp

      Filesize

      44KB