Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19/10/2024, 09:03

General

  • Target

    16.exe

  • Size

    469KB

  • MD5

    7d44c4da90227ff04873e74604d4b51b

  • SHA1

    60d4bc726400f4ddd83ddd36c9bc3882ab3eba9c

  • SHA256

    9a9adf67ee1043f43eb437e10d63505051fb56c33c741879dcbcb98c78885e76

  • SHA512

    03f2a600937a7535515f377c9a10f508061af0a1d5ec932acf85de901fcaa43c2a6b2384dbff39261b40ccd62fa57e658d96a4f85ba415eb5de93c80201d9a81

  • SSDEEP

    12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSyn9:uiLJbpI7I2WhQqZ7y9

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

core-hook.gl.at.ply.gg:7242

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    scvhost.exe

  • copy_folder

    files

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-6ANS5G

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    scvhost

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • UAC bypass 3 TTPs 3 IoCs
  • Detected Nirsoft tools 3 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Adds policy Run key to start application 2 TTPs 6 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry key 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\16.exe
    "C:\Users\Admin\AppData\Local\Temp\16.exe"
    1⤵
    • Adds policy Run key to start application
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1636
    • C:\Windows\SysWOW64\cmd.exe
      /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1160
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • UAC bypass
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:2488
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2328
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\files\scvhost.exe"
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2008
        • C:\ProgramData\files\scvhost.exe
          C:\ProgramData\files\scvhost.exe
          4⤵
          • Adds policy Run key to start application
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2168
          • C:\Windows\SysWOW64\cmd.exe
            /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2684
            • C:\Windows\SysWOW64\reg.exe
              C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
              6⤵
              • UAC bypass
              • System Location Discovery: System Language Discovery
              • Modifies registry key
              PID:2676
          • \??\c:\program files (x86)\internet explorer\iexplore.exe
            "c:\program files (x86)\internet explorer\iexplore.exe"
            5⤵
            • Adds policy Run key to start application
            • Adds Run key to start application
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:2648
            • C:\Windows\SysWOW64\cmd.exe
              /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2820
              • C:\Windows\SysWOW64\reg.exe
                C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
                7⤵
                • UAC bypass
                • System Location Discovery: System Language Discovery
                • Modifies registry key
                PID:2988
            • C:\Windows\SysWOW64\svchost.exe
              svchost.exe
              6⤵
                PID:2704
              • \??\c:\program files (x86)\internet explorer\iexplore.exe
                "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\uwagsaqcjfze"
                6⤵
                  PID:3068
                • \??\c:\program files (x86)\internet explorer\iexplore.exe
                  "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\uwagsaqcjfze"
                  6⤵
                    PID:3064
                  • \??\c:\program files (x86)\internet explorer\iexplore.exe
                    "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\uwagsaqcjfze"
                    6⤵
                      PID:2852
                    • \??\c:\program files (x86)\internet explorer\iexplore.exe
                      "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\uwagsaqcjfze"
                      6⤵
                      • System Location Discovery: System Language Discovery
                      • Suspicious behavior: EnumeratesProcesses
                      PID:2364
                    • \??\c:\program files (x86)\internet explorer\iexplore.exe
                      "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\fynzskadxorjitt"
                      6⤵
                      • Accesses Microsoft Outlook accounts
                      • System Location Discovery: System Language Discovery
                      PID:2276
                    • \??\c:\program files (x86)\internet explorer\iexplore.exe
                      "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\pstrtclxkwjotzhyuor"
                      6⤵
                      • System Location Discovery: System Language Discovery
                      • Suspicious use of AdjustPrivilegeToken
                      PID:316

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\install.vbs

            Filesize

            502B

            MD5

            12d2f0c2d06fcde34f02a0a7b7721550

            SHA1

            8e6ade177fb641109b11112a9732a04c6f7a6edd

            SHA256

            20c041a869983dfe030f6c6228da59ee24219b7f2ddf23a19c2b6aaa9f315ef8

            SHA512

            5351c395db1d4593e6688363dca9ef56c5dc1285294cdbbaf90d26763a7dae2a857dd1a02e041211236772e7591cacfe35785e611cc8370e42ae0874cfc5e3a7

          • C:\Users\Admin\AppData\Local\Temp\uwagsaqcjfze

            Filesize

            2B

            MD5

            f3b25701fe362ec84616a93a45ce9998

            SHA1

            d62636d8caec13f04e28442a0a6fa1afeb024bbb

            SHA256

            b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

            SHA512

            98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

          • \ProgramData\files\scvhost.exe

            Filesize

            469KB

            MD5

            7d44c4da90227ff04873e74604d4b51b

            SHA1

            60d4bc726400f4ddd83ddd36c9bc3882ab3eba9c

            SHA256

            9a9adf67ee1043f43eb437e10d63505051fb56c33c741879dcbcb98c78885e76

            SHA512

            03f2a600937a7535515f377c9a10f508061af0a1d5ec932acf85de901fcaa43c2a6b2384dbff39261b40ccd62fa57e658d96a4f85ba415eb5de93c80201d9a81

          • memory/316-34-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/316-32-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/316-33-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/2276-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/2276-36-0x0000000000400000-0x0000000000457000-memory.dmp

            Filesize

            348KB

          • memory/2276-29-0x0000000000400000-0x0000000000457000-memory.dmp

            Filesize

            348KB

          • memory/2276-37-0x0000000000400000-0x0000000000457000-memory.dmp

            Filesize

            348KB

          • memory/2364-27-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/2364-30-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/2364-35-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/2648-25-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-47-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-20-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-22-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-23-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-19-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-51-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-50-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-21-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/2648-11-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-12-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-13-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-43-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-44-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-45-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-48-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-46-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2648-49-0x00000000002F0000-0x000000000036F000-memory.dmp

            Filesize

            508KB

          • memory/2704-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/2704-17-0x00000000000F0000-0x000000000016F000-memory.dmp

            Filesize

            508KB

          • memory/2704-18-0x00000000000F0000-0x000000000016F000-memory.dmp

            Filesize

            508KB