Analysis

  • max time kernel
    145s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    15-04-2024 19:25

General

  • Target

    f1bdc796ba64b96cd4aaaf20ff3da0cc_JaffaCakes118.exe

  • Size

    13.1MB

  • MD5

    f1bdc796ba64b96cd4aaaf20ff3da0cc

  • SHA1

    3853853e87d469821b136c75f4bc16b09a9c5a2b

  • SHA256

    46c879741fc6d476d4ff3edcd1b33c43c5b6107958925d706dd83fb0b1035f20

  • SHA512

    e6876df269d2c0559484e37b0da780191c45ae3a6b3d48b7dc01002e5a789e696a6fe7b9674e60d90e94bd5214a7ebb2012a3bd39bf381bc79d40aa33b5bf92a

  • SSDEEP

    24576:Vl3YWRibbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbn:

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

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\f1bdc796ba64b96cd4aaaf20ff3da0cc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f1bdc796ba64b96cd4aaaf20ff3da0cc_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2232
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\acubwmzs\
      2⤵
        PID:2100
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\boenylys.exe" C:\Windows\SysWOW64\acubwmzs\
        2⤵
          PID:2548
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create acubwmzs binPath= "C:\Windows\SysWOW64\acubwmzs\boenylys.exe /d\"C:\Users\Admin\AppData\Local\Temp\f1bdc796ba64b96cd4aaaf20ff3da0cc_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:2656
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description acubwmzs "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:2596
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start acubwmzs
          2⤵
          • Launches sc.exe
          PID:2732
        • 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:2600
      • C:\Windows\SysWOW64\acubwmzs\boenylys.exe
        C:\Windows\SysWOW64\acubwmzs\boenylys.exe /d"C:\Users\Admin\AppData\Local\Temp\f1bdc796ba64b96cd4aaaf20ff3da0cc_JaffaCakes118.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2660
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          PID:2496

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        11.0MB

        MD5

        1c57c13bcdead72d25d4ae273199d8ee

        SHA1

        d23dca1913fe89defd29b3c0ff58623eeef262dd

        SHA256

        0a437c2019bb9d91c17c1bb6703b81b509a1946394b39a51b0526de9a81e5ace

        SHA512

        0fc423dd344d8f7318a7ff9caae0cb71d6f15a415c4e3c0c37837d3af1dcf4f8ba0634cf73fb9d93bdfae7573f5afc27185b002eae07257edb46cb3b2de32980

      • memory/2232-0-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/2232-1-0x0000000000260000-0x0000000000261000-memory.dmp

        Filesize

        4KB

      • memory/2232-2-0x0000000000270000-0x0000000000271000-memory.dmp

        Filesize

        4KB

      • memory/2232-6-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/2496-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2496-12-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2496-9-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2496-17-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2496-16-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2496-18-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2496-19-0x0000000000080000-0x0000000000095000-memory.dmp

        Filesize

        84KB

      • memory/2660-7-0x00000000001E0000-0x00000000001E1000-memory.dmp

        Filesize

        4KB

      • memory/2660-13-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB