Analysis

  • max time kernel
    150s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-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.

  • Creates new service(s) 1 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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).

  • Program crash 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f17d88a0df8a456fd5bb47249102360e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f17d88a0df8a456fd5bb47249102360e_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4500
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ndjbuvpi\
      2⤵
        PID:384
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hzhwecge.exe" C:\Windows\SysWOW64\ndjbuvpi\
        2⤵
          PID:1404
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create ndjbuvpi binPath= "C:\Windows\SysWOW64\ndjbuvpi\hzhwecge.exe /d\"C:\Users\Admin\AppData\Local\Temp\f17d88a0df8a456fd5bb47249102360e_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:4996
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description ndjbuvpi "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:2752
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start ndjbuvpi
          2⤵
          • Launches sc.exe
          PID:5112
        • 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:936
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4500 -s 1224
          2⤵
          • Program crash
          PID:4328
      • C:\Windows\SysWOW64\ndjbuvpi\hzhwecge.exe
        C:\Windows\SysWOW64\ndjbuvpi\hzhwecge.exe /d"C:\Users\Admin\AppData\Local\Temp\f17d88a0df8a456fd5bb47249102360e_JaffaCakes118.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2568
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Sets service image path in registry
          • Deletes itself
          PID:4828
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 516
          2⤵
          • Program crash
          PID:448
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4500 -ip 4500
        1⤵
          PID:2344
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2568 -ip 2568
          1⤵
            PID:3908

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

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

            Filesize

            10.9MB

            MD5

            ce166ece2b7e92d62a5bdc3d04ebfed8

            SHA1

            7401b2afee72015dc636cbc161ffc8dfb937d269

            SHA256

            868dcd784c26cd2831fd13cfef3c43fe4687ec2f393e2da987ad698af3c216ba

            SHA512

            b16b51a68bd7db1f0e1c905b9089a4aa9770f3754e77a19e09a026e1cd7fa61134b94b0f725e72c16864f1ffd775adfb6c2e801b2bed02d426a6361dff250978

          • memory/2568-10-0x0000000000930000-0x0000000000A30000-memory.dmp

            Filesize

            1024KB

          • memory/2568-12-0x0000000000400000-0x00000000008E9000-memory.dmp

            Filesize

            4.9MB

          • memory/2568-17-0x0000000000400000-0x00000000008E9000-memory.dmp

            Filesize

            4.9MB

          • memory/4500-4-0x0000000000400000-0x00000000008E9000-memory.dmp

            Filesize

            4.9MB

          • memory/4500-2-0x0000000002630000-0x0000000002643000-memory.dmp

            Filesize

            76KB

          • memory/4500-7-0x0000000000400000-0x00000000008E9000-memory.dmp

            Filesize

            4.9MB

          • memory/4500-8-0x0000000002630000-0x0000000002643000-memory.dmp

            Filesize

            76KB

          • memory/4500-1-0x0000000000910000-0x0000000000A10000-memory.dmp

            Filesize

            1024KB

          • memory/4828-11-0x0000000000700000-0x0000000000715000-memory.dmp

            Filesize

            84KB

          • memory/4828-16-0x0000000000700000-0x0000000000715000-memory.dmp

            Filesize

            84KB

          • memory/4828-18-0x0000000000700000-0x0000000000715000-memory.dmp

            Filesize

            84KB

          • memory/4828-19-0x0000000000700000-0x0000000000715000-memory.dmp

            Filesize

            84KB