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Analysis

  • max time kernel
    144s
  • max time network
    130s
  • 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, 00:55

General

  • Target

    2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe

  • Size

    14.7MB

  • MD5

    1a06c568553494d8ac8fed199bc3f643

  • SHA1

    444d0e357f71486bf1f48b0ff36a87a7015380fc

  • SHA256

    aa213d778920a7df22810ff2b3e343056f54df60e2c2d56eb65c1617ed6be3df

  • SHA512

    499edb398cf25d1b8fab15c367bd87278010b8de2948a02bd582001523ff82999f034edbd1019df850fcbdc777d5c59eca0076cc93e218f05102b8f00c908a60

  • SSDEEP

    24576:opomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttv:Eoo

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_1a06c568553494d8ac8fed199bc3f643_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4296
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lsvsfht\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4288
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\riqoytao.exe" C:\Windows\SysWOW64\lsvsfht\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3128
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create lsvsfht binPath= "C:\Windows\SysWOW64\lsvsfht\riqoytao.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:592
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description lsvsfht "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:5076
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start lsvsfht
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4152
    • 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:3884
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 660
      2⤵
      • Program crash
      PID:544
  • C:\Windows\SysWOW64\lsvsfht\riqoytao.exe
    C:\Windows\SysWOW64\lsvsfht\riqoytao.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1a06c568553494d8ac8fed199bc3f643_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2604
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 632 -s 512
      2⤵
      • Program crash
      PID:4908
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4296 -ip 4296
    1⤵
      PID:440
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 632 -ip 632
      1⤵
        PID:2740

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        11.5MB

        MD5

        ddbc8cc4e78ca703dc6da0c273753fd2

        SHA1

        e4be6d11c25a9754d0f4a49226472224312ffaa8

        SHA256

        26037b0d48096abbd825063c6796bec9ae8a6e42b61c9d82ab689a8636b4e996

        SHA512

        9365a8b9753055f6bc52bf14bf9b4c789f1379aa0579a8e8cf2206c6b6a8544eefeab653de162ae8a5e42077c7f035045dcf3d86e86964826b98f8e3ce633d43

      • memory/632-13-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/632-11-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/632-12-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/632-19-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/2604-14-0x00000000008C0000-0x00000000008D5000-memory.dmp

        Filesize

        84KB

      • memory/2604-16-0x00000000008C0000-0x00000000008D5000-memory.dmp

        Filesize

        84KB

      • memory/2604-17-0x00000000008C0000-0x00000000008D5000-memory.dmp

        Filesize

        84KB

      • memory/4296-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/4296-2-0x00000000005A0000-0x00000000005B3000-memory.dmp

        Filesize

        76KB

      • memory/4296-7-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/4296-9-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/4296-8-0x00000000005A0000-0x00000000005B3000-memory.dmp

        Filesize

        76KB

      • memory/4296-1-0x0000000000760000-0x0000000000860000-memory.dmp

        Filesize

        1024KB