Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/04/2024, 07:43

General

  • Target

    85436adfcf697218c41b0aa04b3dc6b0ef20e6b4d5dc4d630f82b1c75d48644f.exe

  • Size

    1.1MB

  • MD5

    bed4111e963bec36091564b39b80ffc2

  • SHA1

    35df300d1acdc93e9780fd71e3a08a590ba2f934

  • SHA256

    85436adfcf697218c41b0aa04b3dc6b0ef20e6b4d5dc4d630f82b1c75d48644f

  • SHA512

    f6ac3096f9388f49a62f5232fb608d34a6318375b4abc1d389566ee60e639be5b30e64d7159713e5dc26d8055b00d5696628d50248ef2d49d8823758fbc1a641

  • SSDEEP

    24576:s1aM5WKnosp69m2ZVAH8c1Cy/DnhHR7c2cv9jYRkDj:s1aM5WKnospn2cqWDnhHRI2c1jY2

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

limao

C2

defenderav.con-ip.com:33892

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    defenderupdate.exe

  • copy_folder

    defenderupdate

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    ApplicationPath

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    logs

  • keylog_path

    ApplicationPath

  • mouse_option

    false

  • mutex

    Remcos411-SXHMVO

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    defenderupdate

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    notepad;solitaire;

Signatures

  • Remcos

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\85436adfcf697218c41b0aa04b3dc6b0ef20e6b4d5dc4d630f82b1c75d48644f.exe
    "C:\Users\Admin\AppData\Local\Temp\85436adfcf697218c41b0aa04b3dc6b0ef20e6b4d5dc4d630f82b1c75d48644f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4460
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      2⤵
        PID:3664
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3664 -s 496
          3⤵
          • Program crash
          PID:4240
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3664 -ip 3664
      1⤵
        PID:516

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/3664-12-0x0000000000350000-0x00000000003CA000-memory.dmp

              Filesize

              488KB

            • memory/3664-24-0x0000000000350000-0x00000000003CA000-memory.dmp

              Filesize

              488KB

            • memory/3664-19-0x0000000000350000-0x00000000003CA000-memory.dmp

              Filesize

              488KB

            • memory/4460-6-0x0000000006640000-0x0000000006674000-memory.dmp

              Filesize

              208KB

            • memory/4460-4-0x0000000005290000-0x000000000532C000-memory.dmp

              Filesize

              624KB

            • memory/4460-5-0x00000000050C0000-0x00000000050D0000-memory.dmp

              Filesize

              64KB

            • memory/4460-1-0x0000000075120000-0x00000000758D0000-memory.dmp

              Filesize

              7.7MB

            • memory/4460-7-0x00000000090E0000-0x00000000090EA000-memory.dmp

              Filesize

              40KB

            • memory/4460-8-0x00000000050C0000-0x00000000050D0000-memory.dmp

              Filesize

              64KB

            • memory/4460-9-0x000000000A0D0000-0x000000000A0EA000-memory.dmp

              Filesize

              104KB

            • memory/4460-10-0x0000000007B60000-0x0000000007B66000-memory.dmp

              Filesize

              24KB

            • memory/4460-3-0x00000000050E0000-0x0000000005172000-memory.dmp

              Filesize

              584KB

            • memory/4460-16-0x0000000075120000-0x00000000758D0000-memory.dmp

              Filesize

              7.7MB

            • memory/4460-2-0x00000000057A0000-0x0000000005D44000-memory.dmp

              Filesize

              5.6MB

            • memory/4460-0-0x0000000000AA0000-0x0000000000BCA000-memory.dmp

              Filesize

              1.2MB