Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2024 03:06

General

  • Target

    e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c.exe

  • Size

    1.2MB

  • MD5

    fc5a80adf45d78ffa834283d0a78f9f6

  • SHA1

    6865dec6f71546ea01420295b7175038c3a81ec4

  • SHA256

    e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c

  • SHA512

    27636cd0d31e3b1ff384869f1f2be6c23d7f02ecd70027c5d689de0893835d070218596a941472481d637cc6253ed3f2405991a6af4772596cc88f909a7dd7cb

  • SSDEEP

    24576:RYdgfvzAKzxWCC9vSA6GRdsttHVqowvVpBdlvlOUa:rzAcWFt96ydyQow5dldna

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

212.162.149.226:9285

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    AppUpdate

  • delete_file

    false

  • hide_file

    false

  • 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-VCJ8ZS

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    AppUpdate

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Remcos family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c.exe
    "C:\Users\Admin\AppData\Local\Temp\e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2716
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2812
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\iKgKaogJ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2748
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iKgKaogJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8BAC.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2688
    • C:\Users\Admin\AppData\Local\Temp\e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c.exe
      "C:\Users\Admin\AppData\Local\Temp\e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c.exe"
      2⤵
        PID:2020
      • C:\Users\Admin\AppData\Local\Temp\e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c.exe
        "C:\Users\Admin\AppData\Local\Temp\e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c.exe"
        2⤵
          PID:2200
        • C:\Users\Admin\AppData\Local\Temp\e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c.exe
          "C:\Users\Admin\AppData\Local\Temp\e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c.exe"
          2⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2948
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:640
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\AppUpdate\remcos.exe"
              4⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2872
              • C:\ProgramData\AppUpdate\remcos.exe
                C:\ProgramData\AppUpdate\remcos.exe
                5⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:1920
                • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\ProgramData\AppUpdate\remcos.exe"
                  6⤵
                  • Command and Scripting Interpreter: PowerShell
                  • System Location Discovery: System Language Discovery
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:536
                • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\iKgKaogJ.exe"
                  6⤵
                  • Command and Scripting Interpreter: PowerShell
                  • System Location Discovery: System Language Discovery
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2196
                • C:\Windows\SysWOW64\schtasks.exe
                  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iKgKaogJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF602.tmp"
                  6⤵
                  • System Location Discovery: System Language Discovery
                  • Scheduled Task/Job: Scheduled Task
                  PID:1788
                • C:\ProgramData\AppUpdate\remcos.exe
                  "C:\ProgramData\AppUpdate\remcos.exe"
                  6⤵
                  • Executes dropped EXE
                  • Adds Run key to start application
                  • System Location Discovery: System Language Discovery
                  PID:2352

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        392B

        MD5

        046708368578d720d91fb9ceecec742e

        SHA1

        1dc732f67f48a1d5694f4cf14a8d279dbd1d6ee6

        SHA256

        04f4edc28e97a16f93cf7acac864aba17cc467282550ae61baac719262be6f5e

        SHA512

        9106f645ee74c9e061fcb396a00d706512d41054a356125f26a10d42390d8f0d3ea3dd785393bf5de358b62464ec3c0f7d2e27411e87bb408581f820c427e7f0

      • C:\Users\Admin\AppData\Local\Temp\tmp8BAC.tmp

        Filesize

        1KB

        MD5

        416453ad088ce861d0c1be11604eaffb

        SHA1

        15ab130f07135342295aed87b279a53b13690889

        SHA256

        10b560c9c272a31fa31b387bb88f7a0b1b656db3927d1730cde370c9893c6db6

        SHA512

        cf2f6f178b4c5fa3847ce42f0c020e5123749909302330244a60a85e6f51d4e0d7d445482a2bd332c06a6cd0b252722f0b0e93fe72f9b43f642b1e0e8d4af7aa

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

        Filesize

        7KB

        MD5

        b83225fc2146674f999e4127ce6f8f4e

        SHA1

        9b6e59bd446a954b30f96c966d22c952e84a7258

        SHA256

        f6e61fcc8f44dda033f73fe9b20aaa170abad2763d5f6e8233152b3b3b42843a

        SHA512

        5e36d6bba5948e3d21b1cb6a03f7d996cedd150e5c9d0a9777d89ef8df79cc7354c05b8ab40624c3e0bce63ae0ab91c5d5cc5e1f1038a6261e1d796a7307963c

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

        Filesize

        7KB

        MD5

        ad95b38c00676c0196e77780d9dde3ac

        SHA1

        5632d262567bae3fd9c6bdd4dbf308ba8b5eb94f

        SHA256

        425d865fcc45ff0d4530856c16d547bfd2cd2eea283c51a3c97286c4f1f3b4a7

        SHA512

        2afc1fa1dbbc9c85c8e56ffdb71d8a027478486d886abdad357985b347202d598a4f020479604415baecbdd4b833a9d3b10ea25e31f949caceb950aebbbc0f47

      • \ProgramData\AppUpdate\remcos.exe

        Filesize

        1.2MB

        MD5

        fc5a80adf45d78ffa834283d0a78f9f6

        SHA1

        6865dec6f71546ea01420295b7175038c3a81ec4

        SHA256

        e588a098e9ceb33f2616e11a3faf28162e5f4b7f3800b22ab3023bc376aeb18c

        SHA512

        27636cd0d31e3b1ff384869f1f2be6c23d7f02ecd70027c5d689de0893835d070218596a941472481d637cc6253ed3f2405991a6af4772596cc88f909a7dd7cb

      • memory/1920-47-0x0000000000320000-0x0000000000332000-memory.dmp

        Filesize

        72KB

      • memory/1920-46-0x0000000001180000-0x00000000012B2000-memory.dmp

        Filesize

        1.2MB

      • memory/2352-89-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2352-83-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2352-80-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2352-91-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2352-90-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2352-79-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2352-88-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2352-87-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2352-84-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2352-92-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2352-82-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2352-81-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2352-76-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2716-5-0x00000000050C0000-0x0000000005180000-memory.dmp

        Filesize

        768KB

      • memory/2716-4-0x0000000073ED0000-0x00000000745BE000-memory.dmp

        Filesize

        6.9MB

      • memory/2716-3-0x00000000003B0000-0x00000000003C2000-memory.dmp

        Filesize

        72KB

      • memory/2716-2-0x0000000073ED0000-0x00000000745BE000-memory.dmp

        Filesize

        6.9MB

      • memory/2716-1-0x0000000000B00000-0x0000000000C32000-memory.dmp

        Filesize

        1.2MB

      • memory/2716-41-0x0000000073ED0000-0x00000000745BE000-memory.dmp

        Filesize

        6.9MB

      • memory/2716-0-0x0000000073EDE000-0x0000000073EDF000-memory.dmp

        Filesize

        4KB

      • memory/2948-20-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2948-22-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2948-24-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2948-26-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2948-28-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2948-30-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2948-32-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2948-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2948-35-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2948-36-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2948-18-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB