Analysis

  • max time kernel
    841s
  • max time network
    843s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-11-2024 13:25

General

  • Target

    asdx.exe

  • Size

    469KB

  • MD5

    a9f64aa3ea27e2143a39b81f50982690

  • SHA1

    6c7fb6a5e778144817c437a735145f6cb47d5bf3

  • SHA256

    934d049015fd5a92d80510b13b3c12ab62ff84eb959fa07a935d2457d43d8459

  • SHA512

    a42d83fd63b42c8215729c3e7bc6551c000effb7200d47c096835f724ab430bb40733b6557110a160e874f47179878c24fa5d2fb47787535636a3da6af2aba6a

  • SSDEEP

    12288:Omnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSun9:2iLJbpI7I2WhQqZ7u9

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

camera-ms.gl.at.ply.gg:50534

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-DVSGBY

  • 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

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • Hawkeye family
  • 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
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 13 IoCs

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

  • Modifies registry class 34 IoCs
  • Modifies registry key 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\asdx.exe
    "C:\Users\Admin\AppData\Local\Temp\asdx.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1076
    • 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:1276
      • 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:1412
    • 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:1788
      • 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:2740
        • 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:2884
          • 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:2768
            • 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:2900
          • \??\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:2716
            • 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:2940
              • 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:2836
            • C:\Windows\SysWOW64\svchost.exe
              svchost.exe
              6⤵
                PID:2956
              • C:\Windows\SysWOW64\dxdiag.exe
                "C:\Windows\System32\dxdiag.exe" /t C:\Users\Admin\AppData\Local\Temp\sysinfo.txt
                6⤵
                • Drops file in Windows directory
                • System Location Discovery: System Language Discovery
                • Modifies registry class
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                PID:2928
              • C:\Windows\SysWOW64\WScript.exe
                "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ehkpqeid.vbs"
                6⤵
                • System Location Discovery: System Language Discovery
                PID:1340

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      560B

      MD5

      c0add116e665aca2f04ed038c6399441

      SHA1

      3bff7d3fb255ad159c9aee36f5c10a73c8bc3596

      SHA256

      daecfdf55ec8f0726e6b69ff85a25baf4b8287d93113a3aa5b3ecd272839daa6

      SHA512

      02d41f91d6ced10b2735b065db3c88569e14ea781a666016a644c7a7269fce12abbe004faa06fba966bb655ba74a3b2ff36ec0cd4153a4a8989a2c82f56e958a

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

      Filesize

      516B

      MD5

      648dd04dff78101d26637971db01fd8d

      SHA1

      3ec110cd0f4dee65aadf8ace25f6b992093dc972

      SHA256

      65e8204faf79f16f273e5c5dff6d6d37272ff3ddb83f0b2908c4c9b1c1576719

      SHA512

      aa2579ea7a03e97b13d13f4a50b20d44934634e084ee3e76d9c3e354f584d489f905c85db02db2b1ec55cc317cb91b34f6cceb0b4a919e294640ef0296741649

    • C:\Users\Admin\AppData\Local\Temp\sysinfo.txt

      Filesize

      15KB

      MD5

      82a486e03f92ca4ef7d54a132aa1971a

      SHA1

      177b1d823370c09e35286a042bc497ab83ba55b2

      SHA256

      c856681bd4b18625b6ff862db15fc2b9f21142d6c4c587bb5aca88dc80877a9d

      SHA512

      1f6111b0f2cade995a68a8be75cd0fb5066bbc6bcacd32937cea81af5bf2dd3f8628f7f563b0a1f2bb97caef32658b3bcd1e703e8acd8de4d640e353bbc6c073

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

      Filesize

      469KB

      MD5

      a9f64aa3ea27e2143a39b81f50982690

      SHA1

      6c7fb6a5e778144817c437a735145f6cb47d5bf3

      SHA256

      934d049015fd5a92d80510b13b3c12ab62ff84eb959fa07a935d2457d43d8459

      SHA512

      a42d83fd63b42c8215729c3e7bc6551c000effb7200d47c096835f724ab430bb40733b6557110a160e874f47179878c24fa5d2fb47787535636a3da6af2aba6a

    • memory/2716-63-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-70-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-11-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-76-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-79-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-19-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-20-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-21-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-22-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-24-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-25-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-26-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-27-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-28-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-72-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-30-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-71-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-68-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-69-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-67-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-66-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-65-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-29-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-13-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-60-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-64-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-12-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-53-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-55-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-57-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-58-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-59-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2716-61-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2716-62-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2928-44-0x0000000000A50000-0x0000000000A5A000-memory.dmp

      Filesize

      40KB

    • memory/2928-48-0x0000000000480000-0x000000000048A000-memory.dmp

      Filesize

      40KB

    • memory/2928-45-0x0000000002ED0000-0x0000000002F2C000-memory.dmp

      Filesize

      368KB

    • memory/2928-46-0x0000000002ED0000-0x0000000002F2C000-memory.dmp

      Filesize

      368KB

    • memory/2928-43-0x0000000000A50000-0x0000000000A5A000-memory.dmp

      Filesize

      40KB

    • memory/2928-49-0x0000000000480000-0x000000000048A000-memory.dmp

      Filesize

      40KB

    • memory/2928-31-0x0000000000480000-0x000000000048A000-memory.dmp

      Filesize

      40KB

    • memory/2928-47-0x0000000000B50000-0x0000000000B7A000-memory.dmp

      Filesize

      168KB

    • memory/2928-32-0x0000000000480000-0x000000000048A000-memory.dmp

      Filesize

      40KB

    • memory/2928-51-0x0000000000B50000-0x0000000000B7A000-memory.dmp

      Filesize

      168KB

    • memory/2956-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2956-17-0x0000000000110000-0x000000000018F000-memory.dmp

      Filesize

      508KB

    • memory/2956-18-0x0000000000110000-0x000000000018F000-memory.dmp

      Filesize

      508KB