Analysis

  • max time kernel
    94s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2024 17:46

General

  • Target

    2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe

  • Size

    14.8MB

  • MD5

    19bea42ff8e243988f50a16d8f6bdef5

  • SHA1

    5d7ce7af5387302f32d0c56741f71b7fa4a80b15

  • SHA256

    1df3966bb68ddb214aa79bf0e002afae813fe089498c110b09aa63921df34d6b

  • SHA512

    a92c60835aa4f07c44cb79ad3aaa4ec3476bf0df1611b53704bcbbe55baffbe11bce8981b0bf5f91a4b6d54fa6407ddfa25822cbd33de0ece2369883194427b2

  • SSDEEP

    6144:ZXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:ZXzuKJ8GD96ySzTcANnQMMMMMMMb

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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 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 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3012
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vbdlkhls\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1912
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\awqwcewn.exe" C:\Windows\SysWOW64\vbdlkhls\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3160
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create vbdlkhls binPath= "C:\Windows\SysWOW64\vbdlkhls\awqwcewn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2040
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description vbdlkhls "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:588
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start vbdlkhls
      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:4592
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 1044
      2⤵
      • Program crash
      PID:1164
  • C:\Windows\SysWOW64\vbdlkhls\awqwcewn.exe
    C:\Windows\SysWOW64\vbdlkhls\awqwcewn.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-02_19bea42ff8e243988f50a16d8f6bdef5_karagany_mafia.exe"
    1⤵
    • Executes dropped EXE
    PID:2428
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3012 -ip 3012
    1⤵
      PID:920

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      13.4MB

      MD5

      c9a6a32be6626b2103ccbeefc0f0fb34

      SHA1

      1c38e95af5ed51e8d43dcd0b882e75f6a45c29c0

      SHA256

      e0d8eac773628467389de7a832c19ae17bf6c63989475f26a7abf9bc4a9b1c55

      SHA512

      be36b12a0727f9f4d885b8ec6722f51abf974801bdc215e06306900b72d63dd83bd5c46d044b02d25e7475f8deb89291969acd3f9cbcd81db847644f5530955b

    • memory/3012-1-0x00000000004A0000-0x00000000005A0000-memory.dmp

      Filesize

      1024KB

    • memory/3012-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

      Filesize

      76KB

    • memory/3012-3-0x0000000000400000-0x0000000000415000-memory.dmp

      Filesize

      84KB

    • memory/3012-9-0x0000000000400000-0x0000000000415000-memory.dmp

      Filesize

      84KB

    • memory/3012-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

      Filesize

      76KB

    • memory/3012-7-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB