Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    01/06/2024, 18:26

General

  • Target

    8b5b4431f6219c2c8bd2d0ab07df3386_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    8b5b4431f6219c2c8bd2d0ab07df3386

  • SHA1

    43184e2114ef4256a133123938ba845ace9b63d9

  • SHA256

    8062a435db4a4bb89a349bcdbf48ac2c6f6c8c45874105fa8f568f1e1a21137b

  • SHA512

    4196e6661396e5eeaf57451521042661e0a51e55565578988de7d34b0669e55dfacff27109065bda2388e707ad34413eac83877d9c5c16cee6b0282d4cefb689

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj65:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm50

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 7 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b5b4431f6219c2c8bd2d0ab07df3386_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8b5b4431f6219c2c8bd2d0ab07df3386_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2896
    • C:\Windows\SysWOW64\ctkdsbcguh.exe
      ctkdsbcguh.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Loads dropped DLL
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2456
      • C:\Windows\SysWOW64\fdhfrmad.exe
        C:\Windows\system32\fdhfrmad.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2384
    • C:\Windows\SysWOW64\wevidlszxhulggd.exe
      wevidlszxhulggd.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2524
    • C:\Windows\SysWOW64\fdhfrmad.exe
      fdhfrmad.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2596
    • C:\Windows\SysWOW64\jhmlcxcptxkzv.exe
      jhmlcxcptxkzv.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2600
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2372
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:2316

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe

      Filesize

      512KB

      MD5

      209d5ed911fc9d4ac51dde0b0c14b777

      SHA1

      1bd7b27ed62ac0ac44a5b6de45e6cc99ac29b9ef

      SHA256

      699ca2ee9c569925811f6a183370a898bfba57046e516981134fd910f6e51538

      SHA512

      b872ce0e60eda4eb8ad92c2c526a86ea95f1579811458f92cd5e9a0b917d9f3a6fec7938d0b7a3df0e0db6d324484035ed4e0be55dca652db4d7594b00b2a126

    • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe

      Filesize

      512KB

      MD5

      06b5ab938fbc1919af3235837eb7ec24

      SHA1

      084e31a1fd5a6b89878185c9ac00476a3a279631

      SHA256

      e6768f15c4d15fbee2489752fccfaafe9781e72ce168d56dfe77798599880b4f

      SHA512

      9331e045db668e58b38731fd1fa59f33ba05484d23e47d2a572397776d722ea4d97b052c3fe0d2b86b481c0e8b686a71a628b74b6ead1a422f4113f5b946d730

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

      Filesize

      20KB

      MD5

      1d71268987454fb5c96e45e6e1669148

      SHA1

      1eb4563977c71f6558d25120ac9091aa8421ca03

      SHA256

      d95c7e93a1c97876bbb304876b897caaf76a994b709a82df669930efc6a12d60

      SHA512

      8f8dad24b4f62462a1cd70350bd912ad12692a0fa080241e3d4e1b8183090783428852ec8b707c2200261e7535cb50c280c476e819a4446095f8c3a2ec96169a

    • C:\Windows\SysWOW64\fdhfrmad.exe

      Filesize

      512KB

      MD5

      588780b9f5e3375368da51ca2a6ff70d

      SHA1

      921512b72407a5eb59e6a79b10e63484c9397327

      SHA256

      c661e0f0abce22936be78ec6db68c480818a65989cbb4716e90faa3ddaa97367

      SHA512

      5625afe8bbe94a90d8f5052af9af998c5b213bb7fe9a289977369fa0353f7ac1946c197c87512e45cd9c30f57a821cc42257668b118631dc40d0d29210f08445

    • C:\Windows\SysWOW64\jhmlcxcptxkzv.exe

      Filesize

      512KB

      MD5

      9aded1de1b0a0a9aa767d3c463935fed

      SHA1

      d93a7591124ce55ee6ffd02f1e911dfedbe186ef

      SHA256

      2cd4419e9bb4556300cff34fe0ce99b88daed58487834a304f46d7e849bc3b80

      SHA512

      3b41bcda4ba15c09b1db558512b7b8726a326f9d162c8b34ea6e7a596f3c33da33c7d0c3de49317b3bfee62d4d02b8c0ea06244a1161fd77e4af1938d4ac6973

    • C:\Windows\SysWOW64\wevidlszxhulggd.exe

      Filesize

      512KB

      MD5

      e0ea8fe86b69730b17c3c3df038da729

      SHA1

      e9120132c2f91a41232750404826533e5b2dcab1

      SHA256

      64ec255d4be4b4ef01c1de1316b8e9805c1f04ab9dcd5980139a5a7df8b9fdd8

      SHA512

      525db202312a48a044b878871c5e9833d8cb2d6466f15e10bd66247825cd047ffcf610246448e519eb7e6c066130bbc2e9840db23a2444a9c4d8db4c4aa79f3d

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\ctkdsbcguh.exe

      Filesize

      512KB

      MD5

      ef5018285f934acf7b8837bcefa2af81

      SHA1

      f78bb2f879fec49f0b76b59a134ee7db9cd071b2

      SHA256

      e883ef5e0b4fad6f55a91d860ab882cbcda7a23e3074e7f49f09d7edbd2ccbc5

      SHA512

      2873526e09b70e82fc5c19c68051d599857e09a62dff7b1476db3b2af9aff76b2f9bf43d2151e5c7f89c89624e0ebf3d6ab294d3ed7bee6503fdaa6000a5d17a

    • memory/2372-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2372-97-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2896-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB