Analysis

  • max time kernel
    147s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    25/03/2024, 11:38

General

  • Target

    ddeb056ae1107f54f787111be1f88041.exe

  • Size

    12.1MB

  • MD5

    ddeb056ae1107f54f787111be1f88041

  • SHA1

    e423feb2f9ab5312ccc4a4ab6cee6997f1c86c03

  • SHA256

    0679a918d7d020d9487e309fbcf8e55c997f405530f92256b6de7d3ae27eb0b7

  • SHA512

    d4ddc7fc8df98e218a483b231bf7a57d58a10718381b6d6c4af9a27bd7967874cc2fcba8ef5a8621efcc72e78bc1ca3a4b496ba0db896c9ecc178ac4a9cd0ed6

  • SSDEEP

    24576:Igdy5yNM4444444444444444444444444444444444444444444444444444444v:

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\ddeb056ae1107f54f787111be1f88041.exe
    "C:\Users\Admin\AppData\Local\Temp\ddeb056ae1107f54f787111be1f88041.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lzsorelz\
      2⤵
        PID:3036
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wnngwvwk.exe" C:\Windows\SysWOW64\lzsorelz\
        2⤵
          PID:2560
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create lzsorelz binPath= "C:\Windows\SysWOW64\lzsorelz\wnngwvwk.exe /d\"C:\Users\Admin\AppData\Local\Temp\ddeb056ae1107f54f787111be1f88041.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:2580
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description lzsorelz "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:2720
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start lzsorelz
          2⤵
          • Launches sc.exe
          PID:2708
        • 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:2808
      • C:\Windows\SysWOW64\lzsorelz\wnngwvwk.exe
        C:\Windows\SysWOW64\lzsorelz\wnngwvwk.exe /d"C:\Users\Admin\AppData\Local\Temp\ddeb056ae1107f54f787111be1f88041.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1772
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          PID:2468

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        2.1MB

        MD5

        2625bb279b7189f174d33f70d5c9ddd4

        SHA1

        e2f338df49594891338262769442259554159f10

        SHA256

        51f0f0284474c28d9b2d5f98cf1f36e654b814006e2de524169991f7d04c3a58

        SHA512

        eec45aeac1b8ca4865adc23b1f67cb23c97cec4cec35816c5e12b2cb940efc534eafc439863d513e136d86f3c234c9fe97d165b3eaba4054cb6d5fc9c60248fa

      • C:\Windows\SysWOW64\lzsorelz\wnngwvwk.exe

        Filesize

        12.2MB

        MD5

        3ae4a343926f16dcbffca990846d6615

        SHA1

        fb8e99883814c5b241d4a1fc4aeb66258e19f419

        SHA256

        dac7c30c430f1130052962e3a3e5cdddbdefe125daccf9f7717dd72583aa852d

        SHA512

        d52d13ba0dcfc5b0663887ec25dc2b497f1fa9d1fdf337ba64dbcbf03d3e0aa6254f71f1d033a0a351259142a784f52ef52f2a1928b4cf40a7ad936b477db838

      • memory/1772-16-0x0000000000400000-0x0000000000456000-memory.dmp

        Filesize

        344KB

      • memory/1772-9-0x00000000002D0000-0x00000000003D0000-memory.dmp

        Filesize

        1024KB

      • memory/1772-10-0x0000000000400000-0x0000000000456000-memory.dmp

        Filesize

        344KB

      • memory/2204-1-0x0000000000500000-0x0000000000600000-memory.dmp

        Filesize

        1024KB

      • memory/2204-4-0x0000000000400000-0x0000000000456000-memory.dmp

        Filesize

        344KB

      • memory/2204-8-0x0000000000400000-0x0000000000456000-memory.dmp

        Filesize

        344KB

      • memory/2204-3-0x00000000002D0000-0x00000000002E3000-memory.dmp

        Filesize

        76KB

      • memory/2468-14-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2468-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2468-11-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2468-18-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2468-19-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2468-20-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2468-21-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB