General

  • Target

    2024 New Salary Structure.vbs

  • Size

    1KB

  • Sample

    241112-jpye4ayblg

  • MD5

    98dd05c55887724be8c28776218bad24

  • SHA1

    b8939b327872d567398b5cd508b64f831e4d4883

  • SHA256

    ae31154dbcca94d6ef4c0fc616d2935bb75124b4d554d3e681740986a21c1f3b

  • SHA512

    a9c178f38fb232e2b1b8d36b177fe59e8d90803e3a72e7f902217ed521381539b9cc7ccdd367bf080920fe100b7bb1b7c3a203c68fe3cb7fbbf53132b0f31206

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

exe.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

Extracted

Family

remcos

Botnet

Final

C2

104.243.246.120:2030

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-4NJUM7

  • 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

      2024 New Salary Structure.vbs

    • Size

      1KB

    • MD5

      98dd05c55887724be8c28776218bad24

    • SHA1

      b8939b327872d567398b5cd508b64f831e4d4883

    • SHA256

      ae31154dbcca94d6ef4c0fc616d2935bb75124b4d554d3e681740986a21c1f3b

    • SHA512

      a9c178f38fb232e2b1b8d36b177fe59e8d90803e3a72e7f902217ed521381539b9cc7ccdd367bf080920fe100b7bb1b7c3a203c68fe3cb7fbbf53132b0f31206

    • Remcos

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

    • Remcos family

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Checks computer location settings

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

    • Drops startup file

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks