Analysis

  • max time kernel
    147s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    13-01-2025 18:53

General

  • Target

    2025-01-13_15ca15cc8b0af7d03447c7a4153d60e3_mafia.exe

  • Size

    12.3MB

  • MD5

    15ca15cc8b0af7d03447c7a4153d60e3

  • SHA1

    3f7dca10f1ed7f4850540e9f91a856d71786e963

  • SHA256

    71865716dd93cbc09406722c37c3e9f272cc954889f669c9bf204c82a16546ca

  • SHA512

    5402b882785d590d45f60bdf3ecc4d47f41a959388b73e787afec50a411f1d7d29570ef914fd24994d9ee4932e2599ec9fbf676233a42715962a2958e28c7556

  • SSDEEP

    49152:6qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:6qtYc3

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\2025-01-13_15ca15cc8b0af7d03447c7a4153d60e3_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-13_15ca15cc8b0af7d03447c7a4153d60e3_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nzrixshj\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3000
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oqlrkxh.exe" C:\Windows\SysWOW64\nzrixshj\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1984
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create nzrixshj binPath= "C:\Windows\SysWOW64\nzrixshj\oqlrkxh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_15ca15cc8b0af7d03447c7a4153d60e3_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2956
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description nzrixshj "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2964
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start nzrixshj
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3064
    • 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:3044
  • C:\Windows\SysWOW64\nzrixshj\oqlrkxh.exe
    C:\Windows\SysWOW64\nzrixshj\oqlrkxh.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_15ca15cc8b0af7d03447c7a4153d60e3_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2924
    • 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:2852

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    10.8MB

    MD5

    c2ba4ec1ff02e603663c83ae177f37cb

    SHA1

    12da4811e21c55fc6d49150f7bd1f70e25d1e349

    SHA256

    cf9c45694ab7273150895ccd26f843d983702b838b11df8d517378705c5b69e9

    SHA512

    4566a08e2fcb953efa778077d695f85b7d50dabdf3b266e1dd959481eaef7704724e6267f7f2ca8fd914129045c61670ae524b577e95f78a4d83bf104880dd0a

  • memory/2044-7-0x0000000000400000-0x0000000002DC3000-memory.dmp

    Filesize

    41.8MB

  • memory/2044-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2044-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2044-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2044-8-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2044-1-0x0000000002F30000-0x0000000003030000-memory.dmp

    Filesize

    1024KB

  • memory/2852-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2852-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2852-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2852-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2852-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2924-17-0x0000000000400000-0x0000000002DC3000-memory.dmp

    Filesize

    41.8MB