Analysis

  • max time kernel
    142s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    18-07-2020 08:52

General

  • Target

    11be16366d3bb6a869e752ff67c3d113.exe

  • Size

    664KB

  • MD5

    11be16366d3bb6a869e752ff67c3d113

  • SHA1

    1e73a33ed28c80d38f0b4043122c3addcdcaa5e5

  • SHA256

    f3453d83f263aa7665cb7398e7216db55cb8d7d75b8d45cdaf889c9265ba72fb

  • SHA512

    83c75d5939ed70f30ee599cc073d6edb37835c12a6ea1be4426c98905f708aa69f12e3bf49f009db380873afefab372c9acfa0f432bb073174de6be737381950

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.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies registry key 1 TTPs 3 IoCs
  • Suspicious use of WriteProcessMemory 527 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\11be16366d3bb6a869e752ff67c3d113.exe
    "C:\Users\Admin\AppData\Local\Temp\11be16366d3bb6a869e752ff67c3d113.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1460
    • C:\Windows\SysWOW64\TapiUnattend.exe
      "C:\Windows\System32\TapiUnattend.exe"
      2⤵
        PID:1816
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Public\Natso.bat
          3⤵
            PID:2256
            • C:\Windows\SysWOW64\reg.exe
              reg delete hkcu\Environment /v windir /f
              4⤵
              • Modifies registry key
              PID:2328
            • 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:2340
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
              4⤵
                PID:2352
              • C:\Windows\SysWOW64\reg.exe
                reg delete hkcu\Environment /v windir /f
                4⤵
                • Modifies registry key
                PID:2372
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c C:\Users\Public\Runex.bat
              3⤵
                PID:2384
                • C:\Windows \System32\fodhelper.exe
                  "C:\Windows \System32\fodhelper.exe"
                  4⤵
                  • Executes dropped EXE
                  PID:2424
                • C:\Windows \System32\fodhelper.exe
                  "C:\Windows \System32\fodhelper.exe"
                  4⤵
                  • Executes dropped EXE
                  PID:2444
            • C:\Program Files (x86)\internet explorer\ieinstal.exe
              "C:\Program Files (x86)\internet explorer\ieinstal.exe"
              2⤵
                PID:2248

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/1460-124-0x0000000050480000-0x00000000504C0000-memory.dmp

              Filesize

              256KB

            • memory/2248-129-0x0000000000400000-0x0000000000417000-memory.dmp

              Filesize

              92KB

            • memory/2248-127-0x0000000000400000-0x0000000000417000-memory.dmp

              Filesize

              92KB