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Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/02/2025, 20:32

General

  • Target

    2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe

  • Size

    13.8MB

  • MD5

    fd6a280e5fff87a9f918e9ef3d084213

  • SHA1

    ba66a7db8fd8907d793460708329f71f84e9af15

  • SHA256

    cc8125d8df82f9a50e6dbb64c79ca62280c1c54e34d49be178d79547ee78e832

  • SHA512

    b00cf8e2483f6b27d5463d9b86db53707e8d1568192df6b4b13ede7ca16bae50793e091a5996aeeeb7459481d09962ec43b94d1717b80d14d8e8049bc9a72547

  • SSDEEP

    24576:l6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQf:kWdLQk

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\2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hlmgefwz\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1124
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qslwdlzp.exe" C:\Windows\SysWOW64\hlmgefwz\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1064
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create hlmgefwz binPath= "C:\Windows\SysWOW64\hlmgefwz\qslwdlzp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3280
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description hlmgefwz "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1484
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start hlmgefwz
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3608
    • 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:2084
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 1036
      2⤵
      • Program crash
      PID:3124
  • C:\Windows\SysWOW64\hlmgefwz\qslwdlzp.exe
    C:\Windows\SysWOW64\hlmgefwz\qslwdlzp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_fd6a280e5fff87a9f918e9ef3d084213_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1708
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:4540
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1708 -s 512
      2⤵
      • Program crash
      PID:3752
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2004 -ip 2004
    1⤵
      PID:2680
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1708 -ip 1708
      1⤵
        PID:2708

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        13.9MB

        MD5

        b7fa36988f235e866a3a903af1dc3855

        SHA1

        1a40b69cc33fe9094eb0770c5b565939154675c4

        SHA256

        308d0c44be6f0d2090eb5f2439426cec112a1fb4ac6fdfdd1a1659188f9c1a0a

        SHA512

        cde6e1b19f9608f3836962fca73e8bf0c88cbf8d78e35e47bb38db65fe35880dede64b302e7f1372e82a473d5213375e7c5a065e06e307461e036af919c0f8a9

      • memory/1708-13-0x0000000000400000-0x000000000044F000-memory.dmp

        Filesize

        316KB

      • memory/1708-11-0x0000000000400000-0x000000000044F000-memory.dmp

        Filesize

        316KB

      • memory/1708-12-0x0000000000400000-0x000000000044F000-memory.dmp

        Filesize

        316KB

      • memory/1708-19-0x0000000000400000-0x000000000044F000-memory.dmp

        Filesize

        316KB

      • memory/2004-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/2004-2-0x0000000000560000-0x0000000000573000-memory.dmp

        Filesize

        76KB

      • memory/2004-7-0x0000000000400000-0x000000000044F000-memory.dmp

        Filesize

        316KB

      • memory/2004-9-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/2004-8-0x0000000000560000-0x0000000000573000-memory.dmp

        Filesize

        76KB

      • memory/2004-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

        Filesize

        1024KB

      • memory/4540-14-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

        Filesize

        84KB

      • memory/4540-16-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

        Filesize

        84KB

      • memory/4540-17-0x0000000000FD0000-0x0000000000FE5000-memory.dmp

        Filesize

        84KB