General

  • Target

    f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe

  • Size

    1.0MB

  • Sample

    240831-cj863szglm

  • MD5

    a3a1178a681a45c960b0ed5d0c47926b

  • SHA1

    9048f61cab453a6d4eb6ebae1bd2f913350975d9

  • SHA256

    f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713

  • SHA512

    974b0726a47312b9ecf429d4ba7716e196448655e24775f9443c5cc5b5a3fb790ef917baf30dc0da4907c9298ddff10fd411b806103a261dcc926c0f008ce0e3

  • SSDEEP

    24576:78+0suO3PuzmSe//zGdg7Vbo11Im2YJAssiWV9w9pTNLo:juO/uzmN/CdSmfUqPx

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

23.106.127.79:5679

Attributes
  • audio_folder

    MicRecords

  • 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-7VNLX4

  • 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

      f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713.exe

    • Size

      1.0MB

    • MD5

      a3a1178a681a45c960b0ed5d0c47926b

    • SHA1

      9048f61cab453a6d4eb6ebae1bd2f913350975d9

    • SHA256

      f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713

    • SHA512

      974b0726a47312b9ecf429d4ba7716e196448655e24775f9443c5cc5b5a3fb790ef917baf30dc0da4907c9298ddff10fd411b806103a261dcc926c0f008ce0e3

    • SSDEEP

      24576:78+0suO3PuzmSe//zGdg7Vbo11Im2YJAssiWV9w9pTNLo:juO/uzmN/CdSmfUqPx

    • Remcos

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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.

    • 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