Analysis

  • max time kernel
    147s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16/10/2024, 22:07

General

  • Target

    4f4895f86b7a1c708892711e46132e3d_JaffaCakes118.exe

  • Size

    600KB

  • MD5

    4f4895f86b7a1c708892711e46132e3d

  • SHA1

    62a7e6ffd1478d7363105923ef6b99d9a65a5c66

  • SHA256

    c5e685dd65228c0237e01b5467333f08b7de33ee15b320b6b21f687b6c8c564a

  • SHA512

    55f70b90ebc72df90007c8db3c8033f484a6ff5842be4d3ba2973ffbaddce33fc1d22adb965d424a0887fe257cac7cdec4279f28a757f208b47c711ad714941f

  • SSDEEP

    12288:k7l4s3shTJBJbI3HfaiDX29J5FB9i727cgWjaGJkAuR7VUSFNu:kGs3qTZbIXiiX2H5XS27c7ZkvBFNu

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 49 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Writes to the Master Boot Record (MBR) 1 TTPs 3 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 18 IoCs
  • Drops file in Windows directory 13 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 47 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4f4895f86b7a1c708892711e46132e3d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4f4895f86b7a1c708892711e46132e3d_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2784
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /u /s "C:\Windows\system32\70l8.dll"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:536
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /u /s "C:\Windows\system32\03ca.dll"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2620
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /u /s "C:\Windows\system32\da3r.dll"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1948
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /u /s "C:\Windows\system32\8ado.dll"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2236
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /s "C:\Windows\system32\8ado.dll"
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:1940
    • C:\Windows\SysWOW64\aaad.exe
      C:\Windows\system32\aaad.exe -i
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1944
    • C:\Windows\SysWOW64\aaad.exe
      C:\Windows\system32\aaad.exe -s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1572
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32 C:\Windows\system32\830e.dll, Always
      2⤵
      • Loads dropped DLL
      • Writes to the Master Boot Record (MBR)
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      PID:2860
  • C:\Windows\SysWOW64\aaad.exe
    C:\Windows\SysWOW64\aaad.exe
    1⤵
    • Drops file in Drivers directory
    • Executes dropped EXE
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32 C:\Windows\system32\830e.dll,Always
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:3024

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\h8nil4o8\b.dll

          Filesize

          248KB

          MD5

          ebd5936e818cd71abd71febce443ee74

          SHA1

          b8bc8a6b1d7a09d4da389219f8dfed1a0ea66572

          SHA256

          58aa2311c7ffbc780b596bb9013805a98eed982b3661a77672affa2a11dc99c5

          SHA512

          7a7f1b7b169ef7034507c7b84479041f484cbcee5ee6de79e38738c77e36d4be006bbc3e1bb2c1a52d6b91ad1f15d5da1478fd781ed36dc4f29898f26f82baa8

        • C:\Users\Admin\AppData\Local\Temp\h8nil4o8\p.dll

          Filesize

          416KB

          MD5

          70bb23073ea04ec7dbcd3551c34a88b4

          SHA1

          807a8e171467d233cd1a3e781835e12e173c977a

          SHA256

          b3a3d49907af8f91e7b91bc405cb488b284f204695f171cc43ef5f580875c26b

          SHA512

          55d4cdcfefd03ce682d261a9a1dc8de2b8db25ec3b29be0e0b7b839a9680d1f4e94b220e726870b82f5f1a34b770ebac8f52cfb4c5a536e761d54fbe1c3ee1dc

        • C:\Users\Admin\AppData\Local\Temp\h8nil4o8\s.exe

          Filesize

          112KB

          MD5

          6c10c7a65f4d0f0d99bae8ffafd7bc4a

          SHA1

          be2ca7754c25883eafd6f360aca0ef4f7b6fda42

          SHA256

          4c64de9142b676b890e4f0f13f1fed5c25736c3219a2922e2f779c2cb2fffd39

          SHA512

          9a8af5d2a3257283c7d5498290eba4880a3f93799a2dcb36043fc65957d34054dbf3ec8b0b3eea305907ea31875a9f60ff59e74291881d1eb685a0d1149a8410