General

  • Target

    53893a8c0f205e7f0c96f045a6f7bce683bde52b4a692fc64075f863cd8f3c3d

  • Size

    1.1MB

  • Sample

    240526-1mn73sea53

  • MD5

    77e3e093c61c0e2ca41f47a470e74f31

  • SHA1

    c1de740d11d19016caa74c6667b63d85bb765a9f

  • SHA256

    53893a8c0f205e7f0c96f045a6f7bce683bde52b4a692fc64075f863cd8f3c3d

  • SHA512

    fe88fc3a873b33e0f3838f5d9067e1166d8b735e2a596f5a166be47bfc6b9fdf002faf459bc088ea11c35c826aff6c0eacc0e560894ee08451d9828a38b99a8f

  • SSDEEP

    24576:XIGqgFOl3M0XmHxT+3A2U8REKt6csqfa+d+Dih:FFOSDt+QuWKvswjX

Malware Config

Extracted

Family

remcos

Botnet

AQUAFINA

C2

december2n.duckdns.org:6241

december2nd.ddns.net:6241

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-5TYRFW

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      53893a8c0f205e7f0c96f045a6f7bce683bde52b4a692fc64075f863cd8f3c3d

    • Size

      1.1MB

    • MD5

      77e3e093c61c0e2ca41f47a470e74f31

    • SHA1

      c1de740d11d19016caa74c6667b63d85bb765a9f

    • SHA256

      53893a8c0f205e7f0c96f045a6f7bce683bde52b4a692fc64075f863cd8f3c3d

    • SHA512

      fe88fc3a873b33e0f3838f5d9067e1166d8b735e2a596f5a166be47bfc6b9fdf002faf459bc088ea11c35c826aff6c0eacc0e560894ee08451d9828a38b99a8f

    • SSDEEP

      24576:XIGqgFOl3M0XmHxT+3A2U8REKt6csqfa+d+Dih:FFOSDt+QuWKvswjX

    • Remcos

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

    • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks