Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/08/2024, 07:57

General

  • Target
    354b34a3694e2b4d54ba3bca624aa3c3.exe
  • Size 1.2MB
  • Sample240830-js9brstcqd
  • SHA256 52e5414e2e8aabecfc1c38926a3d863e1ee26bef5dc8453fc0568d9f263cf384
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • spacesave.duckdns.org:14645

Attributes
  • audio_folder

    MicRecords

  • 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

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-RLABK3

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\354b34a3694e2b4d54ba3bca624aa3c3.exe
    "C:\Users\Admin\AppData\Local\Temp\354b34a3694e2b4d54ba3bca624aa3c3.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3352
    • C:\Users\Admin\AppData\Local\directory\dddddd.exe
      "C:\Users\Admin\AppData\Local\Temp\354b34a3694e2b4d54ba3bca624aa3c3.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:716

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        definitization

        • Path C:\Users\Admin\AppData\Local\Temp\definitization
        • Size 56KB
        • SHA256 88b06124dd503e93614f8dc3fd011565c949e2a36ecb44c0a9de685465330167
        • MD5 SHA1 SHA512 SSDEEP

        palladize

        • Path C:\Users\Admin\AppData\Local\Temp\palladize
        • Size 483KB
        • SHA256 35317bf8ab08c12751490059e9af81b8226b013401e9906ad109e49c1924d13f
        • MD5 SHA1 SHA512 SSDEEP

        dddddd.exe

        • Path C:\Users\Admin\AppData\Local\directory\dddddd.exe
        • Size 1.2MB
        • SHA256 52e5414e2e8aabecfc1c38926a3d863e1ee26bef5dc8453fc0568d9f263cf384
        • MD5 SHA1 SHA512 SSDEEP

        memory/716-37-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-39-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-31-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-32-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-33-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-34-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-35-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-47-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-38-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-30-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-40-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-41-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-42-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-43-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-44-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-45-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-46-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/716-48-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3352-11-0x0000000002800000-0x0000000002804000-memory.dmp