Analysis

  • max time kernel
    144s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20240319-en
  • resource tags

    arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
  • submitted
    15-04-2024 16:29

General

  • Target

    f17d88a0df8a456fd5bb47249102360e_JaffaCakes118.exe

  • Size

    13.6MB

  • MD5

    f17d88a0df8a456fd5bb47249102360e

  • SHA1

    93a47d4886b3c20869d9ad6b37af0f6609c634ff

  • SHA256

    852db1cc9caa9f15b3b0cba0d14e653d286941bf4b0d4998581dac3454a09fff

  • SHA512

    61b24621b4367ddf2ff0712812c537f85e1785a935a3062cc6625b3b5fea9ddd84e8792a0f9485ad2ece0279cb0aea1034a4dc4d648e5665c84736c47f4404fe

  • SSDEEP

    49152:h8yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyO:h

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.ru

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\f17d88a0df8a456fd5bb47249102360e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f17d88a0df8a456fd5bb47249102360e_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2060
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jowwspkw\
      2⤵
        PID:2092
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gvzdtgxx.exe" C:\Windows\SysWOW64\jowwspkw\
        2⤵
          PID:2352
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create jowwspkw binPath= "C:\Windows\SysWOW64\jowwspkw\gvzdtgxx.exe /d\"C:\Users\Admin\AppData\Local\Temp\f17d88a0df8a456fd5bb47249102360e_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:2648
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description jowwspkw "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:2552
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start jowwspkw
          2⤵
          • Launches sc.exe
          PID:2676
        • 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:2564
      • C:\Windows\SysWOW64\jowwspkw\gvzdtgxx.exe
        C:\Windows\SysWOW64\jowwspkw\gvzdtgxx.exe /d"C:\Users\Admin\AppData\Local\Temp\f17d88a0df8a456fd5bb47249102360e_JaffaCakes118.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2788
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          PID:2400

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        10.3MB

        MD5

        e5d032b4dd21aa98a25122e079274357

        SHA1

        2c280e9eee4b6419e82f818b8a99fc2882b1f4ee

        SHA256

        2ca9be6ccbe1ccc545a10e1a8d18b514e72612bcb56afa08904f6604a8895db4

        SHA512

        1f6b701526aaa8f11745b41d328894cfcd61ef9cc470d5bef83ea4ca3fc1b577f7fae9a9e5481255018ed85b42d0d518071117ef2ea263dd134bccb79bf84e84

      • memory/2060-2-0x0000000000230000-0x0000000000243000-memory.dmp

        Filesize

        76KB

      • memory/2060-4-0x0000000000400000-0x00000000008E9000-memory.dmp

        Filesize

        4.9MB

      • memory/2060-7-0x0000000000400000-0x00000000008E9000-memory.dmp

        Filesize

        4.9MB

      • memory/2060-8-0x0000000000230000-0x0000000000243000-memory.dmp

        Filesize

        76KB

      • memory/2060-1-0x00000000009B0000-0x0000000000AB0000-memory.dmp

        Filesize

        1024KB

      • memory/2400-19-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2400-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2400-11-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2400-21-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2400-14-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2400-20-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2788-10-0x0000000000A20000-0x0000000000B20000-memory.dmp

        Filesize

        1024KB

      • memory/2788-18-0x0000000000400000-0x00000000008E9000-memory.dmp

        Filesize

        4.9MB

      • memory/2788-16-0x0000000000400000-0x00000000008E9000-memory.dmp

        Filesize

        4.9MB