Analysis

  • max time kernel
    140s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/10/2024, 08:59

General

  • Target

    9.exe

  • Size

    469KB

  • MD5

    29f5cb0a23bce81dd8b3c66047e37cd5

  • SHA1

    4c7a62171bddca7a8605a28f3d611bb77903907c

  • SHA256

    25871f62c403fe5f615c5f04412d0f6d2c60e171d30d16299d3882c7cf87934e

  • SHA512

    ff576dda3d1ec656a5e4796cccfbb08181f2d67665e96c50aa095f1cedf7c337ad07ebfd96a7c70a8d2dfe01728ca235c80cd6c717ad48f9a627d56251edd61f

  • SSDEEP

    12288:umnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSen9:WiLJbpI7I2WhQqZ7e9

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-Q8S6Q1

  • 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
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 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 15 IoCs

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

  • Modifies registry class 2 IoCs
  • Modifies registry key 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9.exe
    "C:\Users\Admin\AppData\Local\Temp\9.exe"
    1⤵
    • Adds policy Run key to start application
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:708
    • 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:3780
      • 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:3244
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1648
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\files\scvhost.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:668
        • 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:1932
          • 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:4340
            • 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:396
          • \??\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
            • Modifies registry class
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:3680
            • 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:3480
              • 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:4896
            • C:\Windows\SysWOW64\svchost.exe
              svchost.exe
              6⤵
                PID:4468
              • \??\c:\program files (x86)\internet explorer\iexplore.exe
                "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\damhnfycpkehdwnyuoxc"
                6⤵
                  PID:3260
                • \??\c:\program files (x86)\internet explorer\iexplore.exe
                  "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\damhnfycpkehdwnyuoxc"
                  6⤵
                    PID:4864
                  • \??\c:\program files (x86)\internet explorer\iexplore.exe
                    "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\damhnfycpkehdwnyuoxc"
                    6⤵
                    • System Location Discovery: System Language Discovery
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1172
                  • \??\c:\program files (x86)\internet explorer\iexplore.exe
                    "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\furroxiedswugcjkdykdmlj"
                    6⤵
                      PID:3920
                    • \??\c:\program files (x86)\internet explorer\iexplore.exe
                      "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\furroxiedswugcjkdykdmlj"
                      6⤵
                        PID:4640
                      • \??\c:\program files (x86)\internet explorer\iexplore.exe
                        "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\furroxiedswugcjkdykdmlj"
                        6⤵
                          PID:4168
                        • \??\c:\program files (x86)\internet explorer\iexplore.exe
                          "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\furroxiedswugcjkdykdmlj"
                          6⤵
                          • Accesses Microsoft Outlook accounts
                          • System Location Discovery: System Language Discovery
                          PID:3832
                        • \??\c:\program files (x86)\internet explorer\iexplore.exe
                          "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\qxxkpqbxraozqixoujwfpqeksq"
                          6⤵
                          • System Location Discovery: System Language Discovery
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious use of AdjustPrivilegeToken
                          PID:3228
                        • C:\Windows\SysWOW64\WScript.exe
                          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\qtdkwuwdpewabntbrmfvy.vbs"
                          6⤵
                          • System Location Discovery: System Language Discovery
                          PID:3868

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\ProgramData\files\scvhost.exe

                Filesize

                469KB

                MD5

                29f5cb0a23bce81dd8b3c66047e37cd5

                SHA1

                4c7a62171bddca7a8605a28f3d611bb77903907c

                SHA256

                25871f62c403fe5f615c5f04412d0f6d2c60e171d30d16299d3882c7cf87934e

                SHA512

                ff576dda3d1ec656a5e4796cccfbb08181f2d67665e96c50aa095f1cedf7c337ad07ebfd96a7c70a8d2dfe01728ca235c80cd6c717ad48f9a627d56251edd61f

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

                Filesize

                4KB

                MD5

                57509a6a6267f17bef5e5da8b1df8829

                SHA1

                0886741be12c4e6dd24688df7b9568e91b2fc2aa

                SHA256

                4d50e4b2ee7b25d6a88dea6a28503975ca95f98e6e72fcd1ee754d016df3ed3d

                SHA512

                019c20a2354ef20ff3870ea4d544ae4e7ec21729bfbeb19d2dd2f8b087fcb6b83f259ab2f35e0f3c7f044ebb7c5bbfdfc63f23b811d458a15f5ad35aa9175228

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

                Filesize

                500B

                MD5

                b4a264c27ed297b7cb313d197e51b354

                SHA1

                c716dce9c775ddee3056284c08a941cb9838b4f6

                SHA256

                daf81b80e714be194027fe4645018688d234bfc0063f5961df59743a76c6169b

                SHA512

                dce73c75a48c29bed0ef7069ca968f88e059427535287940bac671992fac6e90226e7d384fd1d95bf8b19e770bd2d1cc0a28075d215040e0da6c01af76620d95

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

                Filesize

                528B

                MD5

                3478bb3d9b1528548baa4ee1de04d269

                SHA1

                92c19b97cd135f38d5964bc079df412a20358927

                SHA256

                684029bc6616d1014d596ca182bc3d6c27973544ea918fc5bf9e174b5333015a

                SHA512

                84f2ce197098abbbfc9f8a8524271f29a693be7e16ca968241c3152276ae72596979f643476d73dc005b7765b90657b2ae47c5946463163a710b682f7772f239

              • memory/1172-23-0x0000000000400000-0x0000000000478000-memory.dmp

                Filesize

                480KB

              • memory/1172-31-0x0000000000400000-0x0000000000478000-memory.dmp

                Filesize

                480KB

              • memory/1172-26-0x0000000000400000-0x0000000000478000-memory.dmp

                Filesize

                480KB

              • memory/3228-30-0x0000000000400000-0x0000000000424000-memory.dmp

                Filesize

                144KB

              • memory/3228-28-0x0000000000400000-0x0000000000424000-memory.dmp

                Filesize

                144KB

              • memory/3228-25-0x0000000000400000-0x0000000000424000-memory.dmp

                Filesize

                144KB

              • memory/3680-38-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-37-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-22-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-20-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-9-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-18-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-50-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-17-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-16-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-46-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-45-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-44-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-11-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-19-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-10-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-39-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-40-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-41-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-42-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3680-43-0x0000000000700000-0x000000000077F000-memory.dmp

                Filesize

                508KB

              • memory/3832-29-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/3832-27-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/3832-24-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/4468-14-0x0000000000830000-0x00000000008AF000-memory.dmp

                Filesize

                508KB

              • memory/4468-15-0x0000000000830000-0x00000000008AF000-memory.dmp

                Filesize

                508KB