Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    14/10/2020, 17:21

General

  • Target
    OC CVE6535 _TVOP-MIO 10(C) 2020,pdf.exe
  • Size 1.0MB
  • Sample201014-h38fh5xhes
  • SHA256 e7def582e6c764fb35cad598da8b83da969897d37241402df8c8bac2b870432f
  • 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 3 IoCs
  • Suspicious use of WriteProcessMemory 521 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OC CVE6535 _TVOP-MIO 10(C) 2020,pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\OC CVE6535 _TVOP-MIO 10(C) 2020,pdf.exe"
    1⤵
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:388
    • C:\Windows\SysWOW64\Notepad.exe
      "C:\Windows\System32\Notepad.exe"
      2⤵
        PID:660
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Public\Natso.bat
          3⤵
            PID:2012
            • C:\Windows\SysWOW64\reg.exe
              reg delete hkcu\Environment /v windir /f
              4⤵
              • Modifies registry key
              PID:1756
            • 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:1568
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
              4⤵
                PID:676
              • C:\Windows\SysWOW64\reg.exe
                reg delete hkcu\Environment /v windir /f
                4⤵
                • Modifies registry key
                PID:1008
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c C:\Users\Public\Natso.bat
              3⤵
                PID:1740
            • C:\Program Files (x86)\internet explorer\ieinstal.exe
              "C:\Program Files (x86)\internet explorer\ieinstal.exe"
              2⤵
                PID:1468

            Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  memory/388-0-0x0000000002EE0000-0x0000000002F1A000-memory.dmp

                  memory/388-2-0x0000000004740000-0x0000000004796000-memory.dmp

                  memory/388-243-0x0000000050480000-0x000000005049A000-memory.dmp

                  memory/388-256-0x0000000010540000-0x0000000010565000-memory.dmp

                  memory/660-5-0x0000000000160000-0x0000000000161000-memory.dmp

                  memory/660-244-0x0000000003C40000-0x0000000003C41000-memory.dmp

                  memory/660-3-0x00000000000A0000-0x00000000000A1000-memory.dmp

                  memory/1468-258-0x00000000001A0000-0x00000000001A1000-memory.dmp

                  memory/1468-250-0x00000000000D0000-0x00000000000D1000-memory.dmp

                  memory/1468-252-0x0000000000110000-0x0000000000111000-memory.dmp

                  memory/2044-1-0x000007FEF6710000-0x000007FEF698A000-memory.dmp