Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

1

Analysis

  • max time kernel
    20s
  • max time network
    68s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29/10/2022, 11:12

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General

  • Target
    file.exe
  • Size 260KB
  • Sample221029-nat7caecck
  • SHA256 a3c45bdd4ce3fe9b473e0c16df56f667c1cb63fda8a7b39c2ee9b37e35eb1ca7
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Signatures

  • Tofsee

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

    trojantofsee
  • Creates new service(s) 1 TTPs
    persistence
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Launches sc.exe 3 IoCs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
      PID:1944
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ottkehcn\
        2⤵
          PID:1948
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\olfgdlbi.exe" C:\Windows\SysWOW64\ottkehcn\
          2⤵
            PID:2012
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" create ottkehcn binPath= "C:\Windows\SysWOW64\ottkehcn\olfgdlbi.exe /d\"C:\Users\Admin\AppData\Local\Temp\file.exe\"" type= own start= auto DisplayName= "wifi support"
            2⤵
            • Launches sc.exe
            PID:1104
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description ottkehcn "wifi internet conection"
            2⤵
            • Launches sc.exe
            PID:1600
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" start ottkehcn
            2⤵
            • Launches sc.exe
            PID:524
          • 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
            PID:1192
        • C:\Windows\SysWOW64\ottkehcn\olfgdlbi.exe
          C:\Windows\SysWOW64\ottkehcn\olfgdlbi.exe /d"C:\Users\Admin\AppData\Local\Temp\file.exe"
          1⤵
            PID:1100

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                olfgdlbi.exe
                • Path C:\Users\Admin\AppData\Local\Temp\olfgdlbi.exe
                • Size 24KB
                • SHA256 9a181f864eab80c2395f269630b89d6fd6b9250d7916270b818856f2a656290f
                • MD5 SHA1 SHA512 SSDEEP
                Submit Download

                olfgdlbi.exe
                • Path C:\Windows\SysWOW64\ottkehcn\olfgdlbi.exe
                • Size 9KB
                • SHA256 8a4aa45a1505ce93b18a9e5a93d1da585afd0effb417f3d7d94530f5ba0c69ea
                • MD5 SHA1 SHA512 SSDEEP
                Submit Download

                memory/1944-57-0x0000000000230000-0x0000000000330000-memory.dmp
                Download

                memory/1944-59-0x0000000000400000-0x0000000002C2F000-memory.dmp
                Download

                memory/1944-55-0x0000000076831000-0x0000000076833000-memory.dmp
                Download

                memory/1944-58-0x00000000003B0000-0x00000000003C3000-memory.dmp
                Download

                memory/1944-67-0x0000000000400000-0x0000000002C2F000-memory.dmp
                Download