General

  • Target

    a.vbs

  • Size

    16KB

  • Sample

    241119-gz888s1dle

  • MD5

    e6c723d6a40150466aa011158c68e591

  • SHA1

    f18348ee740329c6cb706123b34151dde9197b50

  • SHA256

    969d4f51528c1a62de42fd8dfc0efaf09b1857426add53376a3e2db14456a173

  • SHA512

    c9c85c17c329267d8dbed3441baa63c85cbd0abbad858dfd86632de8cd97b461d8f36c4b4fbd126712cd2664ba1e6bd2eece30fb090b9ff462ac4c052b204256

  • SSDEEP

    384:X+7h2tykhjtUXkNaaYtydrEVql1UnqCrP0z9CW6fz83W4u8b:GUtbto31+rOqcnqCrMZuA3nb

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

jwdtcx3kfb.duckdns.org:47392

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

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-JY1QRO

  • 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

      a.vbs

    • Size

      16KB

    • MD5

      e6c723d6a40150466aa011158c68e591

    • SHA1

      f18348ee740329c6cb706123b34151dde9197b50

    • SHA256

      969d4f51528c1a62de42fd8dfc0efaf09b1857426add53376a3e2db14456a173

    • SHA512

      c9c85c17c329267d8dbed3441baa63c85cbd0abbad858dfd86632de8cd97b461d8f36c4b4fbd126712cd2664ba1e6bd2eece30fb090b9ff462ac4c052b204256

    • SSDEEP

      384:X+7h2tykhjtUXkNaaYtydrEVql1UnqCrP0z9CW6fz83W4u8b:GUtbto31+rOqcnqCrMZuA3nb

    • Remcos

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

    • Remcos family

    • UAC bypass

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks