Analysis

  • max time kernel
    150s
  • 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
    30-12-2024 17:33

General

  • Target

    419000b66f04ce0f9b5b3b9f4825d4b68d21df27e99d02b483bd96aa240413d7.exe

  • Size

    955KB

  • MD5

    66bc12a8ad1e13c3e6dd65bd6db4790a

  • SHA1

    61048635297de9edf916ab5c2bbeeac865cad997

  • SHA256

    419000b66f04ce0f9b5b3b9f4825d4b68d21df27e99d02b483bd96aa240413d7

  • SHA512

    0f9fe805f7926a686382da2acc24da889be640b1951eb1a68c4f853aca56e7f3b1ff13d213d419f18e64b49f7a1c38edec556e2531d89c44e02755b286cec1aa

  • SSDEEP

    12288:dNPjK8AQLVCuOIfT4+Fx3ro79vWISMbaYVhtV8on56HldggrhmupdaDgYXvHS:d5RLAxIT4+Fx7EFSUtV8

Malware Config

Extracted

Family

remcos

Version

2.7.0 Pro

Botnet

PORTUGAL

C2

portugal16.duckdns.org:1717

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-V9MRM7

  • 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

  • take_screenshot_title

    wikipedia;solitaire;

Signatures

  • Remcos

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

  • Remcos family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 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 3 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 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\419000b66f04ce0f9b5b3b9f4825d4b68d21df27e99d02b483bd96aa240413d7.exe
    "C:\Users\Admin\AppData\Local\Temp\419000b66f04ce0f9b5b3b9f4825d4b68d21df27e99d02b483bd96aa240413d7.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3936
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GbbHlpGhB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5649.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4620
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
        PID:1736
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "{path}"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1652

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp5649.tmp

      Filesize

      1KB

      MD5

      e2b3f43b22d61cd814d277bd20cdb52c

      SHA1

      046141cdb46cd6055fbfa124d5e36928b53b3fc9

      SHA256

      90f4af0737e43cdee7f8a43e7318d32bd4ae005c028a3ccaabb1e3eec6148427

      SHA512

      feeed7aa46b897a20470c739a475256995bcc062f0e0d7b9aa15338c946f01d7303619b5e42513e96321e5b49475ac70e78493e6cf12fc0eef091e9e94363235

    • C:\Users\Admin\AppData\Roaming\remcos\logs.dat

      Filesize

      74B

      MD5

      2cbecbada604ea884bd191f9f249d26e

      SHA1

      96c6cea841c370e6aaf23dbfed4a831a2c5d5c1e

      SHA256

      05f21a378c65550b515c41ed5d1abdd926cac204ae3d62d2501f6b46053b9174

      SHA512

      ec44ae6870ca9b095aee75a6293b36570ddf3d57b4fb5a6731c7e81083d2ca50eb0b4357f90ec9b2787efdacd1c6c6db39a0daeb7fc11986235befcf500e935c

    • memory/1652-38-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-59-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-23-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-16-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-87-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-42-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-82-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-41-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-79-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-78-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-71-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-20-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-69-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-67-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-65-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-64-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-63-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-62-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-26-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-27-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-28-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-29-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-30-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-31-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-32-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-33-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-36-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-37-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-19-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-40-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-43-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-85-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-61-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-44-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-45-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-46-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-47-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-48-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-49-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-50-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-52-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-53-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-54-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-56-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-57-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-58-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1652-24-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/3936-7-0x00000000055A0000-0x00000000055AA000-memory.dmp

      Filesize

      40KB

    • memory/3936-8-0x0000000005650000-0x00000000056EC000-memory.dmp

      Filesize

      624KB

    • memory/3936-12-0x0000000005B70000-0x0000000005BC2000-memory.dmp

      Filesize

      328KB

    • memory/3936-11-0x0000000005AD0000-0x0000000005B6C000-memory.dmp

      Filesize

      624KB

    • memory/3936-10-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/3936-4-0x000000000ACC0000-0x000000000AD52000-memory.dmp

      Filesize

      584KB

    • memory/3936-25-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/3936-9-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

      Filesize

      4KB

    • memory/3936-3-0x000000000B0D0000-0x000000000B674000-memory.dmp

      Filesize

      5.6MB

    • memory/3936-5-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/3936-6-0x000000000ACA0000-0x000000000ACAA000-memory.dmp

      Filesize

      40KB

    • memory/3936-2-0x00000000053E0000-0x0000000005464000-memory.dmp

      Filesize

      528KB

    • memory/3936-1-0x0000000000960000-0x0000000000A58000-memory.dmp

      Filesize

      992KB

    • memory/3936-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

      Filesize

      4KB