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Analysis

  • max time kernel
    144s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    02/02/2025, 00:51

General

  • Target

    2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe

  • Size

    11.4MB

  • MD5

    1fd39ea0fb754241ec179ae2975708ff

  • SHA1

    a869c4b2113ba693ce6318d45b4c9ccc975d322d

  • SHA256

    c51a7e68b13cd19ac5f8018136be3dd56b72fd5eb2f441753bb760c5494ac8ec

  • SHA512

    f223cfa23e0546b6757880ad92ff28dbdf161641b7853291f61067e27b098e3cdc02d4985054bed89afbba2a939414153f0a7b1b88dad86147442632106be212

  • SSDEEP

    24576:26WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQI:3WdLQk

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\2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ryfrcdkn\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2832
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sedrcmuo.exe" C:\Windows\SysWOW64\ryfrcdkn\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2740
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ryfrcdkn binPath= "C:\Windows\SysWOW64\ryfrcdkn\sedrcmuo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1604
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ryfrcdkn "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2344
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ryfrcdkn
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2656
    • 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:2628
  • C:\Windows\SysWOW64\ryfrcdkn\sedrcmuo.exe
    C:\Windows\SysWOW64\ryfrcdkn\sedrcmuo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2680
    • 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:2652

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    14.5MB

    MD5

    45dc65d3b8f2d8179d1ce6576a624943

    SHA1

    5ea33094a417f9612db0839a8e18277f21de138f

    SHA256

    6f29cb6d5331e3d72f37ec8676e13273bb9f1d0479513f0f0b585a5a187b10ef

    SHA512

    079ebb346a90edc760c18bd289b711d55f7d8d345e29fa79728bfb18c91f1a546d13ed4043f4583c01c999a018321b62ca28a5bb83dc7e744f469fd5cff5c11e

  • memory/2112-9-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2112-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2112-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2112-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2112-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

    Filesize

    1024KB

  • memory/2112-8-0x0000000000400000-0x000000000044F000-memory.dmp

    Filesize

    316KB

  • memory/2652-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2652-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2652-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2652-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2652-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2680-17-0x0000000000400000-0x000000000044F000-memory.dmp

    Filesize

    316KB