Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28/04/2024, 11:50

General

  • Target
    051f3673863ca42827c5bbb8a7f27745_JaffaCakes118.rtf
  • Size 74KB
  • Sample240428-nz3vsafa77
  • SHA256 876d80a15bd26cb462e1084427e51f6241b7682e02ed785418d6f6d7064821c4
  • 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\051f3673863ca42827c5bbb8a7f27745_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:2960
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1964
    • 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:2172

    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 70ff2b606d05ac60fb0859d4bcacfc542cebb9e88764f8300a056c2e332b3562
          • MD5 SHA1 SHA512 SSDEEP

          memory/2960-0-0x000000002F951000-0x000000002F952000-memory.dmp

          memory/2960-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/2960-2-0x00000000716AD000-0x00000000716B8000-memory.dmp

          memory/2960-11-0x00000000716AD000-0x00000000716B8000-memory.dmp

          memory/2960-32-0x000000005FFF0000-0x0000000060000000-memory.dmp