Analysis

  • max time kernel
    146s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-02-2025 20:43

General

  • Target

    2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe

  • Size

    13.7MB

  • MD5

    dfd37cc4b5dc1b09406e8ebd4514d2ab

  • SHA1

    93f80ea2399a59745f42070151b66448581c5693

  • SHA256

    68b78d9be1fbb73b5d29c45c3f6cdcd136d017d6d113d8356fcb61962a874afa

  • SHA512

    7a9f4f93365629614fe3374e8aae07356dfc7c64858bd6c6a5975691df6fb3fd85c1d7fdc8c738734aadb3e0ac69bd69d430f1aeb29c0e3a32cb0f3119a06268

  • SSDEEP

    49152:oqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:oqtYc3

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\2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:448
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ltsigtph\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1732
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pxmqdbkk.exe" C:\Windows\SysWOW64\ltsigtph\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4792
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ltsigtph binPath= "C:\Windows\SysWOW64\ltsigtph\pxmqdbkk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4324
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ltsigtph "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2212
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ltsigtph
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3248
    • 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:3684
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 448 -s 1040
      2⤵
      • Program crash
      PID:4140
  • C:\Windows\SysWOW64\ltsigtph\pxmqdbkk.exe
    C:\Windows\SysWOW64\ltsigtph\pxmqdbkk.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4572
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:220
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4572 -s 528
      2⤵
      • Program crash
      PID:4808
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4572 -ip 4572
    1⤵
      PID:2992
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 448 -ip 448
      1⤵
        PID:4260

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        10.7MB

        MD5

        bffd8c5db26d1fd2963ee819b9a960f5

        SHA1

        45c78c56eec3ff3ea6e3c03fd26e64fd6829b8ea

        SHA256

        d4859bd62d301b90904668ef4f9e3588d2e20c8f5f510874cf692998f642b91a

        SHA512

        0c279f9873676616f6ae56acfe7ff544eac43ab37afa14333042e57d3a0533bbf7974fa5f80698db32c31cd2bd9f412dab27fe2d4be2c8084f53ec20a83f94a0

      • memory/220-8-0x0000000000970000-0x0000000000985000-memory.dmp

        Filesize

        84KB

      • memory/220-14-0x0000000000970000-0x0000000000985000-memory.dmp

        Filesize

        84KB

      • memory/220-15-0x0000000000970000-0x0000000000985000-memory.dmp

        Filesize

        84KB

      • memory/448-1-0x0000000002FB0000-0x00000000030B0000-memory.dmp

        Filesize

        1024KB

      • memory/448-2-0x0000000002E10000-0x0000000002E23000-memory.dmp

        Filesize

        76KB

      • memory/448-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/448-13-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/448-12-0x0000000002E10000-0x0000000002E23000-memory.dmp

        Filesize

        76KB

      • memory/448-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

        Filesize

        41.8MB

      • memory/4572-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

        Filesize

        41.8MB