Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04/05/2024, 02:23

General

  • Target
    113bf76ec9ccab391fc67b37796c6585_JaffaCakes118.rtf
  • Size 101KB
  • Sample240504-cvdjjsdh35
  • SHA256 7e6617004fab3e3abd5b09d9eecf547b324459d9b333f4bd68be340f8e9c68e3
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Zeus
  • 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\113bf76ec9ccab391fc67b37796c6585_JaffaCakes118.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:1988
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2444
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Launches Equation Editor
      PID:2572

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          Normal.dotm

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm
          • Size 20KB
          • SHA256 228df762580d1033cd048882d88f1eb706b9f65fe418175b40ae52eed8649d23
          • MD5 SHA1 SHA512 SSDEEP

          memory/1988-0-0x000000002F9E1000-0x000000002F9E2000-memory.dmp

          memory/1988-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/1988-2-0x000000007168D000-0x0000000071698000-memory.dmp

          memory/1988-11-0x000000007168D000-0x0000000071698000-memory.dmp

          memory/1988-32-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/1988-33-0x000000007168D000-0x0000000071698000-memory.dmp