Analysis

  • max time kernel
    133s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2022, 07:07

General

  • Target
    Screenshot_2022-09-06-13-47-14-56d96fbb0fdavcwhv.exe
  • Size 785KB
  • Sample221107-hxnp7addf4
  • SHA256 3f2a62eed0aff1007bac6177aed82a1722bb6b63b1d49fa87153199cd8e8d5f1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • FESTIVA-EMEKA

C2
  • www.festivapherma.com:2404

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    RMC

  • mouse_option

    false

  • mutex

    Rmc-RL4E0I

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

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 Second Stage 62 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Screenshot_2022-09-06-13-47-14-56d96fbb0fdavcwhv.exe
    "C:\Users\Admin\AppData\Local\Temp\Screenshot_2022-09-06-13-47-14-56d96fbb0fdavcwhv.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4952
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\LxcweyndO.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4264
      • C:\Windows\SysWOW64\xcopy.exe
        xcopy "easinvoker.exe" "C:\Windows \System32\" /K /D /H /Y
        3⤵
        • Enumerates system info in registry
        PID:3720
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
        3⤵
          PID:2136
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
          3⤵
            PID:1212
          • C:\Windows\SysWOW64\xcopy.exe
            xcopy "netutils.dll" "C:\Windows \System32\" /K /D /H /Y
            3⤵
            • Enumerates system info in registry
            PID:4304
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
            3⤵
              PID:4384
            • C:\Windows\SysWOW64\xcopy.exe
              xcopy "KDECO.bat" "C:\Windows \System32\" /K /D /H /Y
              3⤵
              • Enumerates system info in registry
              PID:4800
            • C:\Windows \System32\easinvoker.exe
              "C:\Windows \System32\easinvoker.exe"
              3⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1640
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:628
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell -WindowStyle Hidden -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
                  5⤵
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:5012
            • C:\Windows\SysWOW64\PING.EXE
              ping 127.0.0.1 -n 6
              3⤵
              • Runs ping.exe
              PID:3948
          • C:\Windows\SysWOW64\wscript.exe
            C:\Windows\System32\wscript.exe
            2⤵
            • Blocklisted process makes network request
            PID:2736

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              KDECO.bat

              • Path C:\Users\Public\Libraries\KDECO.bat
              • Size 155B
              • SHA256 37c59c8398279916cfce45f8c5e3431058248f5e3bef4d9f5c0f44a7d564f82e
              • MD5 SHA1 SHA512

              LxcweyndO.bat

              • Path C:\Users\Public\Libraries\LxcweyndO.bat
              • Size 411B
              • SHA256 5a11c5641c476891aa30e7ecfa57c2639f6827d8640061f73e9afec0adbbd7d2
              • MD5 SHA1 SHA512

              easinvoker.exe

              • Path C:\Users\Public\Libraries\easinvoker.exe
              • Size 128KB
              • SHA256 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
              • MD5 SHA1 SHA512 SSDEEP

              netutils.dll

              • Path C:\Users\Public\Libraries\netutils.dll
              • Size 108KB
              • SHA256 35e4a45c3a3f42ef5d340e891e864bafc49e7e869c626bad456290c9cc888303
              • MD5 SHA1 SHA512 SSDEEP

              easinvoker.exe

              • Path C:\Windows \System32\easinvoker.exe
              • Size 128KB
              • SHA256 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
              • MD5 SHA1 SHA512 SSDEEP

              easinvoker.exe

              • Path C:\Windows \System32\easinvoker.exe
              • Size 128KB
              • SHA256 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
              • MD5 SHA1 SHA512 SSDEEP

              netutils.dll

              • Path C:\Windows \System32\netutils.dll
              • Size 108KB
              • SHA256 35e4a45c3a3f42ef5d340e891e864bafc49e7e869c626bad456290c9cc888303
              • MD5 SHA1 SHA512 SSDEEP

              netutils.dll

              • Path C:\Windows \System32\netutils.dll
              • Size 108KB
              • SHA256 35e4a45c3a3f42ef5d340e891e864bafc49e7e869c626bad456290c9cc888303
              • MD5 SHA1 SHA512 SSDEEP

              KDECO.bat

              • Path C:\windows \system32\KDECO.bat
              • Size 155B
              • SHA256 37c59c8398279916cfce45f8c5e3431058248f5e3bef4d9f5c0f44a7d564f82e
              • MD5 SHA1 SHA512

              memory/2736-401-0x0000000010590000-0x0000000010611000-memory.dmp

              memory/2736-402-0x0000000000400000-0x000000000047E000-memory.dmp

              memory/2736-403-0x0000000000400000-0x000000000047E000-memory.dmp

              memory/4952-155-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-192-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-158-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-160-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-159-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-161-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-162-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-163-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-164-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-165-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-166-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-167-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-168-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-169-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-170-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-171-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-174-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-173-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-175-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-176-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-177-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-178-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-179-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-180-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-181-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-182-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-183-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-184-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-185-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-186-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-187-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-188-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-189-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-157-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-191-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-190-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-193-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-194-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-195-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-156-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-132-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-154-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-153-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-152-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-151-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-150-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-149-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-148-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-147-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-146-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-145-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-144-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-143-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-142-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-141-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-140-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-139-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-138-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-134-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-135-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-136-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/4952-137-0x0000000002540000-0x000000000256B000-memory.dmp

              memory/5012-349-0x00007FFA6EBA0000-0x00007FFA6F661000-memory.dmp

              memory/5012-270-0x00007FFA6EBA0000-0x00007FFA6F661000-memory.dmp

              memory/5012-269-0x0000026AF7340000-0x0000026AF7362000-memory.dmp