Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    22s
  • max time network
    58s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29/10/2022, 00:59

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General

  • Target
    file.exe
  • Size 260KB
  • Sample221029-bb275aedc6
  • SHA256 4bd664b7b0106e1d01a573401a2edc221b207c29cfb79ba716e28f80df3c0c1e
  • 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:1160
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nvvfjnxg\
        2⤵
          PID:1676
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\egjupjyz.exe" C:\Windows\SysWOW64\nvvfjnxg\
          2⤵
            PID:1740
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" create nvvfjnxg binPath= "C:\Windows\SysWOW64\nvvfjnxg\egjupjyz.exe /d\"C:\Users\Admin\AppData\Local\Temp\file.exe\"" type= own start= auto DisplayName= "wifi support"
            2⤵
            • Launches sc.exe
            PID:948
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description nvvfjnxg "wifi internet conection"
            2⤵
            • Launches sc.exe
            PID:2012
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" start nvvfjnxg
            2⤵
            • Launches sc.exe
            PID:1204
          • 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:2004
        • C:\Windows\SysWOW64\nvvfjnxg\egjupjyz.exe
          C:\Windows\SysWOW64\nvvfjnxg\egjupjyz.exe /d"C:\Users\Admin\AppData\Local\Temp\file.exe"
          1⤵
            PID:1628

          Network

                MITRE ATT&CK Enterprise v6

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                Downloads

                egjupjyz.exe
                • Path C:\Users\Admin\AppData\Local\Temp\egjupjyz.exe
                • Size 49KB
                • SHA256 11aa990cdb26fe7dcd16ef706040a639b35265ad9c1ee98c693df5cc64636e8d
                • MD5 SHA1 SHA512 SSDEEP
                Submit Download

                egjupjyz.exe
                • Path C:\Windows\SysWOW64\nvvfjnxg\egjupjyz.exe
                • Size 47KB
                • SHA256 a62ec920f6044ede9f7785c475270efe0478811d1f6cbe46fb268d0c8a581d33
                • MD5 SHA1 SHA512 SSDEEP
                Submit Download

                memory/1160-56-0x0000000002D0A000-0x0000000002D1F000-memory.dmp
                Download

                memory/1160-58-0x0000000000400000-0x0000000002C2F000-memory.dmp
                Download

                memory/1160-54-0x0000000075CF1000-0x0000000075CF3000-memory.dmp
                Download

                memory/1160-57-0x0000000000220000-0x0000000000233000-memory.dmp
                Download

                memory/1160-66-0x0000000002D0A000-0x0000000002D1F000-memory.dmp
                Download

                memory/1160-67-0x0000000000400000-0x0000000002C2F000-memory.dmp
                Download