Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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
  • 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
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Drops file in System32 directory 11 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.

  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies registry class 37 IoCs
  • Modifies registry key 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\asdx.exe
    "C:\Users\Admin\AppData\Local\Temp\asdx.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:372
    • 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:2236
      • 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:2388
    • 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:5076
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c "C:\Windows\SysWOW64\Remcos\system.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2660
        • 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:2512
          • 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:3224
            • 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:4320
          • \??\c:\program files (x86)\internet explorer\iexplore.exe
            "c:\program files (x86)\internet explorer\iexplore.exe"
            5⤵
            • Adds Run key to start application
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:1360
            • 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:4248
              • 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:3920
            • C:\Windows\SysWOW64\svchost.exe
              svchost.exe
              6⤵
                PID:4580
              • C:\Windows\SysWOW64\dxdiag.exe
                "C:\Windows\System32\dxdiag.exe" /t C:\Users\Admin\AppData\Local\Temp\sysinfo.txt
                6⤵
                • Drops file in System32 directory
                • System Location Discovery: System Language Discovery
                • Checks SCSI registry key(s)
                • Modifies registry class
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of SetWindowsHookEx
                PID:1992

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • 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

      84KB

      MD5

      46dfcb4714721e8edb7cffa68e26b92b

      SHA1

      709fa847e9a217caeb8dfbeb66a1d7800ccb199b

      SHA256

      eb2deab53bf036374204c4cb2abf647275117664f07f0eff7f70a48a6c1ec41a

      SHA512

      8b49b0e751178a0aa8e6fd0c8db3577db2b84fd73d1db76a8dd2ce36f18a2b4113bf2f5b01cb2b1778e006af44da2f117339b56e8e20e317513037e2c0b466bb

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

      Filesize

      469KB

      MD5

      a9f64aa3ea27e2143a39b81f50982690

      SHA1

      6c7fb6a5e778144817c437a735145f6cb47d5bf3

      SHA256

      934d049015fd5a92d80510b13b3c12ab62ff84eb959fa07a935d2457d43d8459

      SHA512

      a42d83fd63b42c8215729c3e7bc6551c000effb7200d47c096835f724ab430bb40733b6557110a160e874f47179878c24fa5d2fb47787535636a3da6af2aba6a

    • memory/1360-50-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-73-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-80-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-76-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-16-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-17-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-18-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-19-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-22-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-23-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-24-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-25-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-26-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-28-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-27-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-30-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-31-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-32-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-33-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-34-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-35-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-75-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-78-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-11-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-74-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-72-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-71-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-39-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-70-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-69-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-68-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-67-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-10-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-9-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1360-66-0x0000000000F20000-0x0000000000F9F000-memory.dmp

      Filesize

      508KB

    • memory/1992-43-0x00000000028E0000-0x00000000028E1000-memory.dmp

      Filesize

      4KB

    • memory/1992-44-0x00000000028E0000-0x00000000028E1000-memory.dmp

      Filesize

      4KB

    • memory/1992-45-0x00000000028E0000-0x00000000028E1000-memory.dmp

      Filesize

      4KB

    • memory/1992-46-0x00000000028E0000-0x00000000028E1000-memory.dmp

      Filesize

      4KB

    • memory/1992-48-0x00000000028E0000-0x00000000028E1000-memory.dmp

      Filesize

      4KB

    • memory/1992-49-0x00000000028E0000-0x00000000028E1000-memory.dmp

      Filesize

      4KB

    • memory/1992-37-0x00000000028E0000-0x00000000028E1000-memory.dmp

      Filesize

      4KB

    • memory/1992-47-0x00000000028E0000-0x00000000028E1000-memory.dmp

      Filesize

      4KB

    • memory/1992-36-0x00000000028E0000-0x00000000028E1000-memory.dmp

      Filesize

      4KB

    • memory/1992-38-0x00000000028E0000-0x00000000028E1000-memory.dmp

      Filesize

      4KB

    • memory/4580-14-0x0000000000610000-0x000000000068F000-memory.dmp

      Filesize

      508KB

    • memory/4580-15-0x0000000000610000-0x000000000068F000-memory.dmp

      Filesize

      508KB