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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/01/2025, 05:29

General

  • Target

    2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe

  • Size

    12.9MB

  • MD5

    eff212229ba9af2ac3d0f94a52a682aa

  • SHA1

    288f0001a18e9cba39a1324cdb245d8809a1b764

  • SHA256

    aa42ecb7a9230f5ac230615ed00a1dc2c048baa879b50e756423f5cb1cd130ec

  • SHA512

    0746c83a2d6855d6880fa69772b66e38906839fcfbff5b97a89b44070b32e8cbe7c3bb6c37e1ae1c02cea487836d0cfd1cb3f8aa677f383cf1a667d3af1a20a5

  • SSDEEP

    49152:XqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPh:XqtYc3U

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\2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3772
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oqftbtwc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3720
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qoxyhdso.exe" C:\Windows\SysWOW64\oqftbtwc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2124
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create oqftbtwc binPath= "C:\Windows\SysWOW64\oqftbtwc\qoxyhdso.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4040
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description oqftbtwc "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2404
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start oqftbtwc
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4392
    • 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:1564
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3772 -s 1212
      2⤵
      • Program crash
      PID:1508
  • C:\Windows\SysWOW64\oqftbtwc\qoxyhdso.exe
    C:\Windows\SysWOW64\oqftbtwc\qoxyhdso.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2576
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:4964
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2576 -s 520
      2⤵
      • Program crash
      PID:2728
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2576 -ip 2576
    1⤵
      PID:4848
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3772 -ip 3772
      1⤵
        PID:3296

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        14.5MB

        MD5

        3f4c4c314a9e1e3500b0113f8815655c

        SHA1

        f364aebe26f744c276f7944bd52c57eae67a596e

        SHA256

        9ec3f86d763f85d37b64cec67cabe5a02420d653890b9ece64158b7540ef41fe

        SHA512

        3e0bad40bd20ddead45e2571760049d2044fe3ebae59ac5efd3d8b5bb073d5f56492320002eda9313ef202fff254a58956ddaf8e4f29bd09997441ea07598dec

      • memory/2576-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

        Filesize

        41.8MB

      • memory/3772-1-0x0000000003160000-0x0000000003260000-memory.dmp

        Filesize

        1024KB

      • memory/3772-2-0x0000000002EE0000-0x0000000002EF3000-memory.dmp

        Filesize

        76KB

      • memory/3772-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/3772-13-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/3772-12-0x0000000002EE0000-0x0000000002EF3000-memory.dmp

        Filesize

        76KB

      • memory/3772-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

        Filesize

        41.8MB

      • memory/4964-8-0x0000000000560000-0x0000000000575000-memory.dmp

        Filesize

        84KB

      • memory/4964-14-0x0000000000560000-0x0000000000575000-memory.dmp

        Filesize

        84KB

      • memory/4964-15-0x0000000000560000-0x0000000000575000-memory.dmp

        Filesize

        84KB