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Analysis

  • max time kernel
    144s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03/02/2025, 21:14

General

  • Target

    2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe

  • Size

    11.7MB

  • MD5

    65a3d9af44eb20cfc288db3372369d7d

  • SHA1

    fd7c2c1fb7d3f26607fe3c5d67a9bd32d4390961

  • SHA256

    c8168e252d66c907dd3f08216091330e989beb9f5f39e09a3775a9d10d157c45

  • SHA512

    49b24870e57053898fc9ea7fdd552f493fee3776ac6e49bc64e12af6d420830a4299f22f2b186a2fd8f8e7525138e49e5f016a596cb8a3ad976dde43c34b3de5

  • SSDEEP

    3072:5LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:8OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2932
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uwejlftl\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2148
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hdvvshgu.exe" C:\Windows\SysWOW64\uwejlftl\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:380
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create uwejlftl binPath= "C:\Windows\SysWOW64\uwejlftl\hdvvshgu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2964
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description uwejlftl "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2656
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start uwejlftl
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2788
    • 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:2580
  • C:\Windows\SysWOW64\uwejlftl\hdvvshgu.exe
    C:\Windows\SysWOW64\uwejlftl\hdvvshgu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2900
    • 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:2680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    10.2MB

    MD5

    dcffc4c3c76b41a98da33ee27e9f59e6

    SHA1

    dfe2b55d2033331f291cc420f8bd3a57f3d11e40

    SHA256

    35f1c59aa97ad1a2056b52690d546e57c412ca39cd5b0fe3ca68cd07ef7c1b4c

    SHA512

    177ab2ebfb019f36b80f1f9886cb303fa21ab9fb0bbc7de31ab2d2b1931e80d14c3ed447d1bdee24d885976fe084e4c90ce89013960505b2db00a8c17ef4bade

  • memory/2680-8-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2680-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2680-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2680-17-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2680-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2900-12-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2932-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2932-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2932-1-0x0000000000530000-0x0000000000630000-memory.dmp

    Filesize

    1024KB

  • memory/2932-14-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2932-16-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2932-15-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB