General

  • Target

    ded2b5490a3a219e6decb1d053ee27ec773d686256244d1f446f1157a99d5cdb

  • Size

    997KB

  • Sample

    241230-klqrhstpaj

  • MD5

    6b490e3d5ce10164708d60f5918f0ac6

  • SHA1

    e45682c9fdc872e4a4d47e419ef29b77cc49574a

  • SHA256

    ded2b5490a3a219e6decb1d053ee27ec773d686256244d1f446f1157a99d5cdb

  • SHA512

    58ab35a26476d707af07ca40b2f4a44791a15957f7e77697a7f2e387af51b348b05c11d211d1518240e2c498748714c29c8b47e2861ea39b07a920015ca5ba15

  • SSDEEP

    24576:zgzrFaE7ZJdf3f2IBQLn5trTtcOO8q8R77mW41tsKK:zyFjZJd1Qb55TjYE7mW0tsz

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

103.195.236.227:2728

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-BAHB3H

  • 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

      ded2b5490a3a219e6decb1d053ee27ec773d686256244d1f446f1157a99d5cdb

    • Size

      997KB

    • MD5

      6b490e3d5ce10164708d60f5918f0ac6

    • SHA1

      e45682c9fdc872e4a4d47e419ef29b77cc49574a

    • SHA256

      ded2b5490a3a219e6decb1d053ee27ec773d686256244d1f446f1157a99d5cdb

    • SHA512

      58ab35a26476d707af07ca40b2f4a44791a15957f7e77697a7f2e387af51b348b05c11d211d1518240e2c498748714c29c8b47e2861ea39b07a920015ca5ba15

    • SSDEEP

      24576:zgzrFaE7ZJdf3f2IBQLn5trTtcOO8q8R77mW41tsKK:zyFjZJd1Qb55TjYE7mW0tsz

    • Remcos

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

    • Remcos family

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Command and Scripting Interpreter: PowerShell

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

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook accounts

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks