Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14-06-2024 23:44

General

  • Target

    ac0fa3c80e1085d93dc5ffb975e3103e_JaffaCakes118.exe

  • Size

    512KB

  • MD5

    ac0fa3c80e1085d93dc5ffb975e3103e

  • SHA1

    575e6b7712fe168ae589d74529bb269edeb77a46

  • SHA256

    13f672d0ccf9f895e38003fba090a3d50a08de301716a8dc2970bf467a78911b

  • SHA512

    acb1b6da059ef9b22b0fb7536caa1c232910e05d1d3916665d7ba7b41d9cf66f5794dd869b1c753cb412488b0ad6360f255d10c9f00ea52a94d4182487880524

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6U:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5X

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 6 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 18 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\ac0fa3c80e1085d93dc5ffb975e3103e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ac0fa3c80e1085d93dc5ffb975e3103e_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:3056
    • C:\Windows\SysWOW64\cbjzvuqjbw.exe
      cbjzvuqjbw.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:2072
      • C:\Windows\SysWOW64\bizvexjr.exe
        C:\Windows\system32\bizvexjr.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:3032
    • C:\Windows\SysWOW64\yjvyrvhiiwckxon.exe
      yjvyrvhiiwckxon.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2568
    • C:\Windows\SysWOW64\bizvexjr.exe
      bizvexjr.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:2668
    • C:\Windows\SysWOW64\kbialcbxproif.exe
      kbialcbxproif.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2264
    • 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:1576
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:2504

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      512KB

      MD5

      13740a015a6650c1d59944c46632713f

      SHA1

      2719384f84486dfefcdc5f59c12b4ae4a0cc034f

      SHA256

      75affbf8a0f80837384b995349169b8d3dfedac36c21f006fc1c29f1941060a2

      SHA512

      9a73a12cc25e1679ca4aa525dae4c7785479e25d50cc1c2b01aff54b1f6800c666b678c88169641d20a57b3ef0af9447e00c0dc99e9592c460f3dd3df4f3f9ea

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

      Filesize

      20KB

      MD5

      ce99382abe082567a81a56e21117987f

      SHA1

      34fbf18f0fafa54ed849931882a57774bf9aa53d

      SHA256

      528c9db96d5af6b14e513c0a579a77e6864d835a12056d956b6b5535cec56f1c

      SHA512

      d4d0f0cd5c8a0c91c75979451b03d4b3f93149acf56de6ba9b73ace4611c39cbee8151b4477163be509bf365025cb2a75c349ef26ad3b191b0dc0795dbd6c91c

    • C:\Windows\SysWOW64\yjvyrvhiiwckxon.exe

      Filesize

      512KB

      MD5

      f2f4380ab0f79ad2b0696dee26cc569f

      SHA1

      6d6614dc31adaab99620273796a61be839e78eeb

      SHA256

      29719b10cf4e89219018e25388c2ee1edb9136873092d15dae40892e95b83abf

      SHA512

      3dba502a77161e54b61621356bebe89038cbd4b8eedc3385be2dc8015226c9ec7396a8eae0ce78f145bf7a713c34d253a2a32b99a8c99fca2fcf0c721398d138

    • C:\Windows\mydoc.rtf

      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    • \Windows\SysWOW64\bizvexjr.exe

      Filesize

      512KB

      MD5

      182aa4bfb495c8de73c0aa98c2345c2b

      SHA1

      b75123be7d56b155e7e04eb1806012373184f46b

      SHA256

      b5f36948567816933ca69854ec0add6a8c25f811f9d6abbf16213dde5a93410d

      SHA512

      a02ff561be1dd48b1baaf57b535ef2c651b5fd7b953fb79bd7c0b4d6e24e0a37a06fdbe97980d319e0f793239b45eb00119a68a4747d55f2bd143a2b1f265995

    • \Windows\SysWOW64\cbjzvuqjbw.exe

      Filesize

      512KB

      MD5

      5458e2fc9d46a4662cc8418ce9f7d4b1

      SHA1

      7c16df0b046e1b80925e220e5242d1607fb13feb

      SHA256

      b1c4685830df43761b83a8b8f49d963f3b434972186e982b87ba7c29ecaf9932

      SHA512

      fa3b5c784324fd0beb3c2681cd35f6c28765eb9ae92bfb432a32b2170e4bce1bb342e7a245bba4192d133672f628887bed7fbb409a03276b91b9010d77f6294f

    • \Windows\SysWOW64\kbialcbxproif.exe

      Filesize

      512KB

      MD5

      ba0cb2b0b15e07ac39e035966ed9f728

      SHA1

      41d6f3c8850ee7c73c3db210fee355919df65f2b

      SHA256

      903332fb653e636a447d22770956da112a340f838afeecab58d86d82f20e869e

      SHA512

      d682c188557691a4fd066ba333ab38a3ab69b5efa54c3b663c8f0d8555512e8492d9ad71e675f5dd301437e20b9844391c5d481e16cc86a3e608857e4b4c3078

    • memory/1576-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1576-96-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/3056-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB