Analysis

  • max time kernel
    143s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16/10/2024, 01:01

General

  • Target

    4abfb20a73e1d996a939448a3cb7452b_JaffaCakes118.exe

  • Size

    178KB

  • MD5

    4abfb20a73e1d996a939448a3cb7452b

  • SHA1

    a601a4fb3df4ae88002c3eebe3fe5d17afaed7c2

  • SHA256

    4b0dff2b9e815c7a4ffacfaac103564af2e8b38235823b08344c56033b6d4dff

  • SHA512

    2535bb731a15d7264527b4feae012c6b6820daa4778517a8565aa774b2977c7cb3849eb6b4bf3259e4ef4f364892c19283c7865f54b6ae92eb2640ae25fe300f

  • SSDEEP

    3072:Rdq0eiZEfNgbLwlR/nR9QYfOjdqFyCtpnXKZ/tMtqb4730y/EM:Rdq0PZEfNsLQD9QyOjdqFyCtlXY/tMtb

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4abfb20a73e1d996a939448a3cb7452b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4abfb20a73e1d996a939448a3cb7452b_JaffaCakes118.exe"
    1⤵
    • Drops file in Drivers directory
    • Server Software Component: Terminal Services DLL
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2544
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k netsvcs
    1⤵
    • Deletes itself
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    PID:2376

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\ZzDQCEd23g.del

          Filesize

          86B

          MD5

          aa92b8689b0e6e1f412343a07c73af77

          SHA1

          9e7d7bab97770fcf39ba578374de06a643f53cb6

          SHA256

          dbafdb381f191f4816017a0df33064e25809f6cd6397c1116db88ca4e4fb31aa

          SHA512

          1803759ed05f945e5ff1e8f96028d640cf5fdbe4a79cc81cccba28e7f4c235c572df2c82e6e7b47d97ab960376e0820ff121c2aa8cdff15b50127fe33159ed4d

        • \Windows\System32\drivers\etc\WEeeKuJS.dll

          Filesize

          142KB

          MD5

          75d7e09e71b34b987f6065b1fd754d87

          SHA1

          dbebf7c4fcc1885a8e5ac834d9672548b7a425cc

          SHA256

          3a6747d29e1c3f84ab43829c8bb8eda6d4536cb9aaec196539fbe70adfbb1899

          SHA512

          6c1b29d3770c54c5c32253266bc81628410b755ea19625180eb7d74e5f1ee3cec8f3f3c1ca1f6f56eb84984aabc66a65e290a103c9d38a91b46acdfee09ab3d2

        • memory/2376-6-0x00000000001E0000-0x0000000000206000-memory.dmp

          Filesize

          152KB

        • memory/2376-9-0x00000000001E0000-0x0000000000206000-memory.dmp

          Filesize

          152KB

        • memory/2544-3-0x0000000000400000-0x000000000040F000-memory.dmp

          Filesize

          60KB

        • memory/2544-8-0x0000000000400000-0x000000000040F000-memory.dmp

          Filesize

          60KB