Analysis

  • max time kernel
    149s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-02-2025 06:55

General

  • Target

    2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe

  • Size

    12.8MB

  • MD5

    9d5863a9ae43e0ca1a631bce9f0f8abc

  • SHA1

    d068e742cd0a0b717ff6ee23b09b75a5730c0947

  • SHA256

    5c6e2601359a3f22947a7e94f63aa0d6c0408f069f3846f11a7efd6889642d35

  • SHA512

    9cc601348648b40ce12cc5166b61eca0bddfe898792b9ce0fc9f487be7f2d040b0a95a3d3e1bdf3b94c30b909c4f82ad02db121079303cc1850dcf856e958cdb

  • SSDEEP

    24576:4EfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZv:1fot

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\2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5020
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\umzhwoao\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3152
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uwpahpdt.exe" C:\Windows\SysWOW64\umzhwoao\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:960
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create umzhwoao binPath= "C:\Windows\SysWOW64\umzhwoao\uwpahpdt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:428
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description umzhwoao "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4836
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start umzhwoao
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:5104
    • 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:4616
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5020 -s 892
      2⤵
      • Program crash
      PID:1772
  • C:\Windows\SysWOW64\umzhwoao\uwpahpdt.exe
    C:\Windows\SysWOW64\umzhwoao\uwpahpdt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4972
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:3712
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 528
      2⤵
      • Program crash
      PID:1764
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5020 -ip 5020
    1⤵
      PID:2860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4972 -ip 4972
      1⤵
        PID:2604

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        10.9MB

        MD5

        04016793e8040ebdea1b62a426f32093

        SHA1

        c50f6f3e5e2d0dd0f67da3ed817ba74ec1be2ccb

        SHA256

        f2de7a0ee099740a52c52e4ec7c458beaa980cd6b4e43e64c6b01709b02d5f5f

        SHA512

        2efa3e69e2f224426e74c67274ccb2dee9a72dac1d5345d63d9aa0a995ab632cae960608a04f759a5563e48ca05f4e13aee3b881154cbf9e7762cb2733d27b6f

      • memory/3712-14-0x00000000005D0000-0x00000000005E5000-memory.dmp

        Filesize

        84KB

      • memory/3712-17-0x00000000005D0000-0x00000000005E5000-memory.dmp

        Filesize

        84KB

      • memory/3712-16-0x00000000005D0000-0x00000000005E5000-memory.dmp

        Filesize

        84KB

      • memory/4972-13-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/4972-12-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/4972-11-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/4972-18-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/5020-8-0x0000000000560000-0x0000000000573000-memory.dmp

        Filesize

        76KB

      • memory/5020-7-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/5020-1-0x0000000000680000-0x0000000000780000-memory.dmp

        Filesize

        1024KB

      • memory/5020-9-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/5020-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/5020-2-0x0000000000560000-0x0000000000573000-memory.dmp

        Filesize

        76KB