Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    16-11-2024 19:31

General

  • Target

    Luna.exe

  • Size

    469KB

  • MD5

    0e1f18269f4d5830d1963b033de49c31

  • SHA1

    d1b43487f7ed369e64109e40b43f9f9d7a582c2f

  • SHA256

    bc74405d530b50d63eaa5fd282dd477cb2607b4935f603a34d0a22066ac667f3

  • SHA512

    047dccca911644287422fe0ac2c65d02179b6ffacb9e4cceff89b5dd7350b9b270e2e82ca621c265937df02fc31f13c5d6bf0bc65750965999b012a9d4d8ec87

  • SSDEEP

    12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSon9:uiLJbpI7I2WhQqZ7o9

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

items-jeffrey.gl.at.ply.gg:58427

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    system.exe

  • copy_folder

    Remcos

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %WinDir%\System32

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-W6XH0D

  • 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

  • Remcos

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

  • Remcos family
  • UAC bypass 3 TTPs 3 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Drops file in System32 directory 5 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.

  • Modifies registry key 1 TTPs 3 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Luna.exe
    "C:\Users\Admin\AppData\Local\Temp\Luna.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2600
    • 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:684
      • 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:2428
    • 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:2176
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c "C:\Windows\SysWOW64\Remcos\system.exe"
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2304
        • C:\Windows\SysWOW64\Remcos\system.exe
          C:\Windows\SysWOW64\Remcos\system.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2476
          • 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:2228
            • 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:2928
          • \??\c:\program files (x86)\internet explorer\iexplore.exe
            "c:\program files (x86)\internet explorer\iexplore.exe"
            5⤵
            • Adds Run key to start application
            • Drops file in System32 directory
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:580
            • 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:2540
              • 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:2840
            • C:\Windows\SysWOW64\svchost.exe
              svchost.exe
              6⤵
                PID:2788
              • C:\Windows\SysWOW64\WScript.exe
                "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ibbtlqz.vbs"
                6⤵
                • System Location Discovery: System Language Discovery
                PID:1812

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      560B

      MD5

      c0add116e665aca2f04ed038c6399441

      SHA1

      3bff7d3fb255ad159c9aee36f5c10a73c8bc3596

      SHA256

      daecfdf55ec8f0726e6b69ff85a25baf4b8287d93113a3aa5b3ecd272839daa6

      SHA512

      02d41f91d6ced10b2735b065db3c88569e14ea781a666016a644c7a7269fce12abbe004faa06fba966bb655ba74a3b2ff36ec0cd4153a4a8989a2c82f56e958a

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

      Filesize

      516B

      MD5

      11bfb67f928b0558ccd925e17199f1d0

      SHA1

      1a6f10caf0575dac048571356a6f253c8e4d5fab

      SHA256

      94cdc47ae1407e5c1074cc6dd923d7f038a110b6d096e51e571224fb2e2a92f1

      SHA512

      7b72f01ac2163508d539fdbc19e4b4726ea2c39aec328e0d52617bccd9e3743a7d4a1bee5fd77f66d55069f5689f33f69404d8631d148486673da16406debd29

    • C:\Windows\SysWOW64\Remcos\system.exe

      Filesize

      469KB

      MD5

      0e1f18269f4d5830d1963b033de49c31

      SHA1

      d1b43487f7ed369e64109e40b43f9f9d7a582c2f

      SHA256

      bc74405d530b50d63eaa5fd282dd477cb2607b4935f603a34d0a22066ac667f3

      SHA512

      047dccca911644287422fe0ac2c65d02179b6ffacb9e4cceff89b5dd7350b9b270e2e82ca621c265937df02fc31f13c5d6bf0bc65750965999b012a9d4d8ec87

    • memory/580-20-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/580-22-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/580-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/580-13-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/580-19-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/580-12-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/580-21-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/580-11-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/580-25-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/580-26-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/580-27-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/580-28-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/580-29-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/580-37-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/580-33-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2788-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB