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Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    23/12/2024, 14:17

General

  • Target

    JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe

  • Size

    198KB

  • MD5

    3ec8e58a92565c4ced1145c1c72ab6ec

  • SHA1

    a34a09a7adc735bf169b9ec84d11f64f68132270

  • SHA256

    07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808

  • SHA512

    b8fab3c46dc352f6bc1e25d1df6a50620e3b6e212b4f2e7540fd2fd343420d83ba059e6e10ff7b419273254fe6a44e72226bf1a3c4fd9209ad768857e6f32e41

  • SSDEEP

    3072:NnrGi1mhhahmGJlLRwdSFK5KircPI1ZeNMkcx8EuSzsz:NrGi1mhZGJFGq0cPI1siuSz+

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.

  • Tofsee family
  • Windows security bypass 2 TTPs 1 IoCs
  • Creates new service(s) 2 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).

  • 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.

  • 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 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uxzsnrim\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1052
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sidpjvzr.exe" C:\Windows\SysWOW64\uxzsnrim\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2920
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create uxzsnrim binPath= "C:\Windows\SysWOW64\uxzsnrim\sidpjvzr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2308
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description uxzsnrim "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2760
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start uxzsnrim
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2892
    • 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:2884
  • C:\Windows\SysWOW64\uxzsnrim\sidpjvzr.exe
    C:\Windows\SysWOW64\uxzsnrim\sidpjvzr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07635e09b07f448dae84a64557fbd6214ae2be52391ab67257fe53fb42fbb808.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2752
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2816

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    12.9MB

    MD5

    851122e53577291ad48fb2de95c7bce1

    SHA1

    45b92e5c42b0f4d5506da9b54f22a00f87578567

    SHA256

    41a048a2b4906ca7188993bea3e56973fd80ca08cc37eda34a1cac0bbf75a474

    SHA512

    44d366e476db6ee10b0226e60f72c9b7febc58e07189084269561c2bd7174fc7bdb04b00aa0ab747e0a4c7b0d0fcf8ee6f2acb907a2c5a40cc58f696ed6c724a

  • memory/1732-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1732-4-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1732-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/1732-8-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/1732-9-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/1732-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

    Filesize

    1024KB

  • memory/2752-17-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/2816-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2816-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2816-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2816-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2816-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB