Analysis

  • max time kernel
    138s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    16/10/2020, 10:24

General

  • Target
    Tgdzbcw_Signed_.exe
  • Size 1.0MB
  • Sample201016-paze14b49s
  • SHA256 cb8095a08ad64a6811cfb011db6f7bc97f21e459ca65382251bec95cfd1d9529
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • ModiLoader Second Stage 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Modifies registry key 1 TTPs 3 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of WriteProcessMemory 790 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Tgdzbcw_Signed_.exe
    "C:\Users\Admin\AppData\Local\Temp\Tgdzbcw_Signed_.exe"
    1⤵
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1044
    • C:\Windows\SysWOW64\Notepad.exe
      "C:\Windows\System32\Notepad.exe"
      2⤵
        PID:2008
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Public\Natso.bat
          3⤵
            PID:2340
            • C:\Windows\SysWOW64\reg.exe
              reg delete hkcu\Environment /v windir /f
              4⤵
              • Modifies registry key
              PID:2372
            • C:\Windows\SysWOW64\reg.exe
              reg add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\x.bat reg delete hkcu\Environment /v windir /f && REM "
              4⤵
              • Modifies registry key
              PID:2384
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
              4⤵
                PID:2404
              • C:\Windows\SysWOW64\reg.exe
                reg delete hkcu\Environment /v windir /f
                4⤵
                • Modifies registry key
                PID:2464
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c C:\Users\Public\Natso.bat
              3⤵
                PID:2820
            • C:\Program Files (x86)\internet explorer\ieinstal.exe
              "C:\Program Files (x86)\internet explorer\ieinstal.exe"
              2⤵
                PID:2396

            Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  memory/1044-1-0x0000000004720000-0x0000000004775000-memory.dmp

                  memory/1044-242-0x0000000050480000-0x000000005049A000-memory.dmp

                  memory/1844-0-0x000007FEF6430000-0x000007FEF66AA000-memory.dmp

                  memory/2008-4-0x00000000000E0000-0x00000000000E1000-memory.dmp

                  memory/2008-2-0x00000000000A0000-0x00000000000A1000-memory.dmp

                  memory/2008-243-0x0000000003C80000-0x0000000003C81000-memory.dmp

                  memory/2396-252-0x0000000000150000-0x0000000000151000-memory.dmp

                  memory/2396-250-0x00000000000D0000-0x00000000000D1000-memory.dmp