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Analysis

  • max time kernel
    144s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    27/01/2025, 18:39

General

  • Target

    2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe

  • Size

    13.3MB

  • MD5

    6aedcabbe6c76777301c851da07c6c3c

  • SHA1

    844aaac0d4383b8df6bf5ebe266ed8b704f76bb2

  • SHA256

    df205ed8f7724b3a6a00a9fecca1aeef1077885af5a9be0a85a910920919701e

  • SHA512

    0f940b01a7d5695ad414b818cf082de7d37e36d5b715024b1fe8650f45613facfb03ca006efa0962e35fd9f47d524f2af55fc1cb350676db903bff6fe6c221ce

  • SSDEEP

    3072:RLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:UOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
  • Windows security bypass 2 TTPs 1 IoCs
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • 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.

  • 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 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2140
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\akxujbeo\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2204
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rielcbfj.exe" C:\Windows\SysWOW64\akxujbeo\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2856
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create akxujbeo binPath= "C:\Windows\SysWOW64\akxujbeo\rielcbfj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2924
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description akxujbeo "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2472
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start akxujbeo
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1528
    • 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:2880
  • C:\Windows\SysWOW64\akxujbeo\rielcbfj.exe
    C:\Windows\SysWOW64\akxujbeo\rielcbfj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_6aedcabbe6c76777301c851da07c6c3c_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2820
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.9MB

    MD5

    05fe1b2524b1908a7ff6cc0c5681fe1f

    SHA1

    87193f305b563ebbff65614073b8bb41d0984823

    SHA256

    a9e951d88e8b02ac4e1b6fb492fdba48d88aad0cc839c7ae78c28d8758d7e61c

    SHA512

    d9aaf0ed0626c238930a0a37a06fab577caf1c011897d2b9c6bd0414034850deca09b23baab2f37bfb6afda921b3e56e7687f0362d4a6466c85df44308c37135

  • memory/2140-7-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2140-4-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2140-1-0x0000000000570000-0x0000000000670000-memory.dmp

    Filesize

    1024KB

  • memory/2140-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2140-8-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2140-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2708-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2708-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2708-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2708-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2708-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2820-17-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB