General

  • Target

    XDR_ResponseApp_CollectFile_ID00000016_20230220T080423Z.7z

  • Size

    364KB

  • Sample

    230220-j5n7csab45

  • MD5

    c286a04c929995e0d7bc9e1fd6962e5e

  • SHA1

    c128931b5b6451e7fde264c574a720419ee88268

  • SHA256

    971709cae1eba506c4276b8fa1bc456ec4ac74f6c4a7a97c3f81a1a86ba94348

  • SHA512

    97d4c13925ac89bae29a77bf942f63d3cf030b8d3b71b5f29bdf24e1b7045aa31fec49a9ad73ef885321df3778e0e11533311bce8574845603061a49d6567e75

  • SSDEEP

    6144:5rOYHMC69iPpAF/jgtN+8qxmU96jrBNlm0vj8dYNwjFPguyakCXvn20MjpXvvv:FvMC9AFS+8q0q6XBr7vjYpyaXXv20GX/

Malware Config

Extracted

Family

remcos

Botnet

Feb-AED-2023

C2

pentester01.duckdns.org:53077

pentester0.accesscam.org:56796

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    WeTransfer.exe

  • copy_folder

    WeTransfer

  • 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

    Wetransfer

  • mouse_option

    false

  • mutex

    Wtr-T1D6TL

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    WeTransfer

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      Yfnrxjtz.exe

    • Size

      40.1MB

    • MD5

      ada8e3c4cf912f0d95b90bcba4c35bf9

    • SHA1

      2c3dd9fb668c241b7155cf35afd4b570d74fc436

    • SHA256

      e9b31a5fc7aeb80fb74a0d2c1a09037a3147a971eec398b0b49340fbac7c70ae

    • SHA512

      b315989a8d5fecc0392432468e54f8e8cf11ec2878637998d379f41a4fae40d8fbeb44f4fa7c1de8d17c3f06610318621c5f4baa6c6849eea31f6bf52d26b13b

    • SSDEEP

      12288:09eu4QUqmzouRvfkK10/ngIlubJA7pXUKPpj1RgL7/Wx5QblAc6FgMHOygt:09B4cuRHLkVS8pjTDzClp6FFu/

    • ModiLoader, DBatLoader

      ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

    • Remcos

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

    • ModiLoader Second Stage

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks