Analysis

  • max time kernel
    145s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-09-2024 11:04

General

  • Target

    2024-09-03_c3f72bad2615b1edf087c4127b22e474_mafia.exe

  • Size

    12.4MB

  • MD5

    c3f72bad2615b1edf087c4127b22e474

  • SHA1

    27dcaad1b3860f3a972493397842fb6cf9eff190

  • SHA256

    3a0c68d2618cba30b54820dd43efae83e393c81c52a84fb1c4a744e7f82120ec

  • SHA512

    72e1f9191b874d6e2ef3d36443ea94ae8219c0a9e3dbc364276f62aaf3b3f562f5a2444226be42dae3dab7f9dfa1621e091e7405bec013964bbc7d8eb4d0ce73

  • SSDEEP

    6144:n+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:n+r1IeSXMXc7LlxWV4Ug97GZ+ej

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.

  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-03_c3f72bad2615b1edf087c4127b22e474_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-03_c3f72bad2615b1edf087c4127b22e474_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2800
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qcbnnlhp\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3516
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\younowmv.exe" C:\Windows\SysWOW64\qcbnnlhp\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:880
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create qcbnnlhp binPath= "C:\Windows\SysWOW64\qcbnnlhp\younowmv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-09-03_c3f72bad2615b1edf087c4127b22e474_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1664
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description qcbnnlhp "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2452
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start qcbnnlhp
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:5024
    • 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:4464
  • C:\Windows\SysWOW64\qcbnnlhp\younowmv.exe
    C:\Windows\SysWOW64\qcbnnlhp\younowmv.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-09-03_c3f72bad2615b1edf087c4127b22e474_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3816
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2392

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    12.9MB

    MD5

    78bfec3da6da612c2846c309b88f7b04

    SHA1

    afef27f21cecfcb8a8da865a0389f3ca03440123

    SHA256

    1bceacb94132fd60af626f574d532ba12931e40a20feb703208ee9fb2d882733

    SHA512

    88728df1f4c31b8977092833021c8c811f852ff9bf805b68cb631958fb536b8a0aec38065d9a3a5c0af934f08274bfd8ddc914e5f3fe02e2a32a0d019b9be62d

  • memory/2392-13-0x00000000003B0000-0x00000000003C5000-memory.dmp

    Filesize

    84KB

  • memory/2392-11-0x00000000003B0000-0x00000000003C5000-memory.dmp

    Filesize

    84KB

  • memory/2392-16-0x00000000003B0000-0x00000000003C5000-memory.dmp

    Filesize

    84KB

  • memory/2800-1-0x00000000006A0000-0x00000000007A0000-memory.dmp

    Filesize

    1024KB

  • memory/2800-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2800-7-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2800-6-0x0000000000400000-0x000000000051A000-memory.dmp

    Filesize

    1.1MB

  • memory/3816-9-0x0000000000400000-0x000000000051A000-memory.dmp

    Filesize

    1.1MB

  • memory/3816-10-0x0000000000400000-0x000000000051A000-memory.dmp

    Filesize

    1.1MB

  • memory/3816-15-0x0000000000400000-0x000000000051A000-memory.dmp

    Filesize

    1.1MB