Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    15-04-2024 21:13

General

  • Target

    f1efb145c5dda056d48a9442dc04926a_JaffaCakes118.exe

  • Size

    12.6MB

  • MD5

    f1efb145c5dda056d48a9442dc04926a

  • SHA1

    eaebffb29a1611d484e18a11af6dfdabd05fec3e

  • SHA256

    d295cb6824f3b1dee15da5e235dd3af4cd06c839a7c56adf62be284c4763ac7a

  • SHA512

    d3cdac4f2d34d26d8896dfbc6e4b42d7169b8ecb110067846d35bd893c9540613a16eb98409b5e4997d88475be5127237fc58a2d3978285cb6dfba35d70c7902

  • SSDEEP

    196608:XE/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvn:XE

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Windows security bypass 2 TTPs 1 IoCs
  • Creates new service(s) 1 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f1efb145c5dda056d48a9442dc04926a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f1efb145c5dda056d48a9442dc04926a_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2504
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fnanyjbx\
      2⤵
        PID:2336
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mkussirh.exe" C:\Windows\SysWOW64\fnanyjbx\
        2⤵
          PID:1908
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create fnanyjbx binPath= "C:\Windows\SysWOW64\fnanyjbx\mkussirh.exe /d\"C:\Users\Admin\AppData\Local\Temp\f1efb145c5dda056d48a9442dc04926a_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:2568
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description fnanyjbx "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:2652
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start fnanyjbx
          2⤵
          • Launches sc.exe
          PID:1444
        • C:\Windows\SysWOW64\netsh.exe
          "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
          2⤵
          • Modifies Windows Firewall
          PID:2424
      • C:\Windows\SysWOW64\fnanyjbx\mkussirh.exe
        C:\Windows\SysWOW64\fnanyjbx\mkussirh.exe /d"C:\Users\Admin\AppData\Local\Temp\f1efb145c5dda056d48a9442dc04926a_JaffaCakes118.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2680
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          PID:2152

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\mkussirh.exe

        Filesize

        11.9MB

        MD5

        c18c827af8695a2dce81987502ca0022

        SHA1

        522d2e9cdd407521e001bf4bc4a02f52ae264621

        SHA256

        9b9254b89c5da61e9dd9f4417dd636ca0519474e40015a5b92cc412cf48bda7f

        SHA512

        dd1dff64a013c014eeba464b6e9eec9e90ffe51280dc1aac4c768f8c733cde44920f574876f2486f8d1c84e338c6b43077ceb132d7b5c007d6b284ec4975857a

      • memory/2152-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2152-22-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2152-21-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2152-20-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2152-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

        Filesize

        84KB

      • memory/2152-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2504-6-0x0000000000400000-0x0000000000870000-memory.dmp

        Filesize

        4.4MB

      • memory/2504-10-0x0000000000020000-0x0000000000033000-memory.dmp

        Filesize

        76KB

      • memory/2504-7-0x00000000009C0000-0x0000000000AC0000-memory.dmp

        Filesize

        1024KB

      • memory/2504-1-0x00000000009C0000-0x0000000000AC0000-memory.dmp

        Filesize

        1024KB

      • memory/2504-4-0x0000000000400000-0x0000000000870000-memory.dmp

        Filesize

        4.4MB

      • memory/2504-2-0x0000000000020000-0x0000000000033000-memory.dmp

        Filesize

        76KB

      • memory/2680-12-0x0000000000230000-0x0000000000330000-memory.dmp

        Filesize

        1024KB

      • memory/2680-14-0x0000000000400000-0x0000000000870000-memory.dmp

        Filesize

        4.4MB

      • memory/2680-17-0x0000000000400000-0x0000000000870000-memory.dmp

        Filesize

        4.4MB