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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/01/2025, 19:24

General

  • Target

    2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe

  • Size

    14.8MB

  • MD5

    db9790710e078b436cbf178a61ee4147

  • SHA1

    c512730d9f9565a00a0c7b4be0fb20b03e3472cb

  • SHA256

    1425db43a8b0112cf05aee3ee89fa87faf60e2219e5e192b64cca4a0e66f347a

  • SHA512

    bfa2be34ee5b07149361c390afa2e00f1aaed038824307cbf27eca3eaa48bc2f7516b948cc571a5d904c84dbf0eabcfd79a3ebdebe5032965b9b5a2aba359a01

  • SSDEEP

    24576:kpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttl:woo

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.

  • Tofsee family
  • 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\2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4248
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hqpqmuku\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:372
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zcicrcnt.exe" C:\Windows\SysWOW64\hqpqmuku\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1304
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create hqpqmuku binPath= "C:\Windows\SysWOW64\hqpqmuku\zcicrcnt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4496
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description hqpqmuku "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4064
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start hqpqmuku
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2420
    • 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:2928
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 1036
      2⤵
      • Program crash
      PID:3664
  • C:\Windows\SysWOW64\hqpqmuku\zcicrcnt.exe
    C:\Windows\SysWOW64\hqpqmuku\zcicrcnt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2404
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2492
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2404 -s 512
      2⤵
      • Program crash
      PID:1904
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4248 -ip 4248
    1⤵
      PID:3632
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2404 -ip 2404
      1⤵
        PID:2500

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        10.8MB

        MD5

        881ae5e812c4511d57890638353498cb

        SHA1

        149c7516cb3ac8783cf840f8759516a2c1bec095

        SHA256

        934fd39df2980310945d248f4a1fd1fb792db057e1a6f6ba3513655b5036ed14

        SHA512

        cbd12c6aa02c467d19731a6e9536379caa0eca0c0f9dfc8937c56a417cbf752926cad070ff29b134543c8edcd8f9465d655fbc90c0c161bcfa76e184ea3af90e

      • memory/2404-13-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/2404-11-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/2404-12-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/2404-18-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/2492-14-0x0000000000BA0000-0x0000000000BB5000-memory.dmp

        Filesize

        84KB

      • memory/2492-16-0x0000000000BA0000-0x0000000000BB5000-memory.dmp

        Filesize

        84KB

      • memory/2492-17-0x0000000000BA0000-0x0000000000BB5000-memory.dmp

        Filesize

        84KB

      • memory/4248-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/4248-2-0x00000000005A0000-0x00000000005B3000-memory.dmp

        Filesize

        76KB

      • memory/4248-7-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/4248-9-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/4248-8-0x00000000005A0000-0x00000000005B3000-memory.dmp

        Filesize

        76KB

      • memory/4248-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

        Filesize

        1024KB