Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-08-2024 07:38

General

  • Target

    c493a48f9205919cba93e0841f4af186_JaffaCakes118.exe

  • Size

    11.7MB

  • MD5

    c493a48f9205919cba93e0841f4af186

  • SHA1

    bbf59d0cc6059fba6770f53b3da639c9b715a5c2

  • SHA256

    f47c06cc9869f3b933505a5723b625a259416bc2719b7737f1a269a005f9f2bc

  • SHA512

    583cf7e4d437d0ca9b030970ceb749ab8f6c4debc9f62014e1b81c77290d67a309bb679b8e8cb9b05523e6983baa18b0b8f65ba5cb53631dd724c07da48846d1

  • SSDEEP

    196608:q3qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqC:q

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.

  • Creates new service(s) 2 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).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c493a48f9205919cba93e0841f4af186_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\c493a48f9205919cba93e0841f4af186_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3084
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ngtprave\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5100
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gwrdxjnf.exe" C:\Windows\SysWOW64\ngtprave\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1464
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ngtprave binPath= "C:\Windows\SysWOW64\ngtprave\gwrdxjnf.exe /d\"C:\Users\Admin\AppData\Local\Temp\c493a48f9205919cba93e0841f4af186_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4980
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ngtprave "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1124
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ngtprave
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4956
    • 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
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:2204
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1032
      2⤵
      • Program crash
      PID:4548
  • C:\Windows\SysWOW64\ngtprave\gwrdxjnf.exe
    C:\Windows\SysWOW64\ngtprave\gwrdxjnf.exe /d"C:\Users\Admin\AppData\Local\Temp\c493a48f9205919cba93e0841f4af186_JaffaCakes118.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3244
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:3484
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3244 -s 516
      2⤵
      • Program crash
      PID:1312
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3084 -ip 3084
    1⤵
      PID:3240
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3244 -ip 3244
      1⤵
        PID:880

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        14.4MB

        MD5

        8c73f8064359bb7564579387cfda966d

        SHA1

        2d771d323ea81cdcc25f911493479be9be2d5a5f

        SHA256

        2a74ea2ef15f41180499560b7b5d828afe479cfde50d4031f197d98bb56ca5e5

        SHA512

        5520f47b557a148864a0be786af3e5b394048d64462e6a95c5b6974f59140543abaf329c4bb683199e3c647238bb353acc4f830449c9784e08b5b674931ab851

      • memory/3084-1-0x0000000000BB0000-0x0000000000CB0000-memory.dmp

        Filesize

        1024KB

      • memory/3084-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

        Filesize

        76KB

      • memory/3084-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/3084-10-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/3084-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

        Filesize

        76KB

      • memory/3084-8-0x0000000000400000-0x0000000000871000-memory.dmp

        Filesize

        4.4MB

      • memory/3244-12-0x0000000000400000-0x0000000000871000-memory.dmp

        Filesize

        4.4MB

      • memory/3244-15-0x0000000000400000-0x0000000000871000-memory.dmp

        Filesize

        4.4MB

      • memory/3484-11-0x0000000000D60000-0x0000000000D75000-memory.dmp

        Filesize

        84KB

      • memory/3484-14-0x0000000000D60000-0x0000000000D75000-memory.dmp

        Filesize

        84KB

      • memory/3484-16-0x0000000000D60000-0x0000000000D75000-memory.dmp

        Filesize

        84KB