General

  • Target

    XDR_ResponseApp_CollectFile_ID00000020_20230220T082136Z.7z

  • Size

    360KB

  • Sample

    230220-keltzsab72

  • MD5

    797178b3449b96f551b36d35dea634b8

  • SHA1

    1d57ab59074c0dcfdd46344e3fcb1eb949137464

  • SHA256

    e40471f94122edb465dddb424f6f5ad43a1a75ce88f1a1331ff6b83389adc311

  • SHA512

    b7f3aafa3376395ce312c801c540bf5c9664b78479110d885361d27f2692b9c41173a0855547dc74c4d75bc2762e513ce44a44005f3f0bf22655896d50a54421

  • SSDEEP

    6144:jSQvrYmSunyvOpmxlRTPaylm0iNbj8t7pKbEL4t4RVkXa6myoJYcN45:7vrYmvYOpmJTiX06bjMKbELSsC5mtKj

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

      Drawing.exe

    • Size

      38.1MB

    • MD5

      557519e86236b452736cd37dd6a911d5

    • SHA1

      1cd058ac54ded73f5085b0f77f87848c4004dc92

    • SHA256

      062e09ef4557a58115bae71a72ea2d3f7168fb199588c35d1d6e4ef02b7d4e4d

    • SHA512

      800fab3177b87046e8a516f6066be5970b0f26bb9a21a66dd10dbf7d5628bc324024700d161b8258a944002c7c23973a71c8938f6ffbe7d3e1f7655c1c15302f

    • SSDEEP

      12288:59eu4QUqmzouRvfkK10/ngIlubJA7pXUKPpj1R8P/Wx5QblAc6FgMHOygt:59B4cuRHLkVS8pjTfzClp6FFu/

    • 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