Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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
  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 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:2928
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      2⤵
      • Drops file in Windows directory
      • Suspicious use of SetWindowsHookEx
      PID:2644

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\logs\logs.dat

          Filesize

          144B

          MD5

          00969feba289d0b1df02e3cb4706b4a3

          SHA1

          978077e1858262a855f6579b2f8b06b1492b5b2b

          SHA256

          63b290c53c1157a572fb5e875084055c99984a4073ee68554f80509fd9d7fa2a

          SHA512

          251db0937d6a2edd2405dd980a7802016a6ef6a382230671af99a074403a7a7ce90ed1e675443e247bd0db790b28743289d7e8b829f81ad7ecf3ae6828fd3fc8

        • memory/2644-22-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-35-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-67-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-66-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-61-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-6-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-8-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-10-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-11-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-12-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-13-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-14-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-15-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2644-18-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-59-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-54-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-53-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-47-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-25-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-26-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-27-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-48-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-33-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-34-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-20-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-40-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-41-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2644-23-0x0000000000400000-0x000000000047A000-memory.dmp

          Filesize

          488KB

        • memory/2928-0-0x0000000000C00000-0x0000000000D2A000-memory.dmp

          Filesize

          1.2MB

        • memory/2928-2-0x0000000000B40000-0x0000000000B80000-memory.dmp

          Filesize

          256KB

        • memory/2928-1-0x00000000746D0000-0x0000000074DBE000-memory.dmp

          Filesize

          6.9MB

        • memory/2928-21-0x00000000746D0000-0x0000000074DBE000-memory.dmp

          Filesize

          6.9MB

        • memory/2928-5-0x00000000003D0000-0x00000000003D6000-memory.dmp

          Filesize

          24KB

        • memory/2928-4-0x0000000000B20000-0x0000000000B3A000-memory.dmp

          Filesize

          104KB

        • memory/2928-3-0x0000000000AF0000-0x0000000000B24000-memory.dmp

          Filesize

          208KB