Analysis

  • max time kernel
    134s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    19-06-2024 20:27

General

  • Target

    2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe

  • Size

    14.6MB

  • MD5

    98fa720e04828c3150ee35c8cb30f403

  • SHA1

    d5b7405bd6d33d41b06f12dc8c15dc6abe65db4a

  • SHA256

    adebf698ce7862226c1794aafa272bc8bdd8363ccfb2ed52964912f89f79e61e

  • SHA512

    f0d572dac42f07c94debb447ff084e523dc9e7e7d597ad789f87d0459193db6d3d1e7c20b4afb072ca7bbd54d090524e625ba5f69e30f64ed610699804c3a3b8

  • SSDEEP

    6144:2+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:2+r1IeSXMXc7LlxWV4Ug97GZ+ej

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.

  • 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.

  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1780
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nuruohnb\
      2⤵
        PID:1952
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ggflwkru.exe" C:\Windows\SysWOW64\nuruohnb\
        2⤵
          PID:2804
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create nuruohnb binPath= "C:\Windows\SysWOW64\nuruohnb\ggflwkru.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:3008
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description nuruohnb "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:2692
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start nuruohnb
          2⤵
          • Launches sc.exe
          PID:2820
        • 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
          PID:2640
      • C:\Windows\SysWOW64\nuruohnb\ggflwkru.exe
        C:\Windows\SysWOW64\nuruohnb\ggflwkru.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-06-19_98fa720e04828c3150ee35c8cb30f403_mafia.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2292
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Sets service image path in registry
          • Deletes itself
          PID:1700

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        10.4MB

        MD5

        19d0fddfa22a4eff7f9c12246fc2b022

        SHA1

        446ca6915baaf66115bf8794387a6c87ea359b0a

        SHA256

        d59e3d1c05d900df232108cdf4f6ea40f455076296cac203f8e1de780d5e30b2

        SHA512

        9efb6104938d24c3c73a6abd8d76dd1858d1c14a430152d14f56b9865b133d2631544e5115bbd8ca3ab30e6b2dbcd9754707811f832b3a270df25a8519f549f8

      • memory/1700-10-0x00000000000D0000-0x00000000000E5000-memory.dmp

        Filesize

        84KB

      • memory/1700-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/1700-7-0x00000000000D0000-0x00000000000E5000-memory.dmp

        Filesize

        84KB

      • memory/1700-15-0x00000000000D0000-0x00000000000E5000-memory.dmp

        Filesize

        84KB

      • memory/1700-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

        Filesize

        84KB

      • memory/1780-2-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/1780-1-0x0000000000650000-0x0000000000750000-memory.dmp

        Filesize

        1024KB

      • memory/1780-13-0x0000000000400000-0x000000000051A000-memory.dmp

        Filesize

        1.1MB

      • memory/1780-14-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/2292-11-0x0000000000400000-0x000000000051A000-memory.dmp

        Filesize

        1.1MB