General

  • Target

    RFQ-00948-STELLION-878378.lzh

  • Size

    869KB

  • Sample

    241127-pck7wszjej

  • MD5

    d62fd25eefe3f520d283ca95b57d2240

  • SHA1

    b25fdb1332db6909054ad41c420c3acc212fe244

  • SHA256

    824ddfdf5560bafc28347fbb92f558b97d4d09d0cf13fa5b57a340ecef837160

  • SHA512

    f5b7999ff5b122137ba1856caa71711809b5e0421b7c948113d3443008591d1d4b70ca76656e999f00bc5b2540011909d50d1b6e109507f1bc446b6b46aa79ac

  • SSDEEP

    24576:gOFmmZDILOJS5VhcH/4YQQZZ63twTxhGurjzyq5:gOcmGc/lZO+lE82q5

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

206.189.218.238:4782

206.189.218.238:2286

206.189.218.238:3363

206.189.218.238:3386

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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-NJK093

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      RFQ-00948-STELLION-878378.exe

    • Size

      1.1MB

    • MD5

      7d78937ebc3648958437741df13eec52

    • SHA1

      9b30169d5adb06c082d6b9e297368faad45725f5

    • SHA256

      ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a

    • SHA512

      7e1acb40093bdb9a23d598a5766011409e6ef88b329c69eec3b32ea6873817e09b41e70383ae5eed3752283087db35ede2f28bf291c49df14fbeaf5b98decba4

    • SSDEEP

      24576:PYoOciJwQYaoRuivChV3DSwctuoqBMY9zVZEueHTf:PsbwQIRssqBMWVZEu

    • 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.

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks