General

  • Target

    NEW-ORDER-FE7191PO1.rar

  • Size

    890KB

  • Sample

    250210-lwvznaykgt

  • MD5

    d2fe4f21f087ddaf18364c1e7b1f4768

  • SHA1

    f996e56c7188372c15719147312c1a551b1db2b0

  • SHA256

    19e14165500691ec0a6c3a02d845535b83da5839b5337c6ee65c0cc5c465711d

  • SHA512

    cf1cb8b75bfc16da8e23fb2071ce9b1ef5f6c4235a82902b24cf0c33aab8de4d8dc8ab52a466ac520a57677769d8c0a9130be78c0425e16a40984d807179bfc9

  • SSDEEP

    24576:Td3efv7pQO8hD/czDLJHNHN8GEFphQdmsVhzbDdLU1fXlrny:TpSpQO81/cxHQ7+Uxxny

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

xbbxzqaw.ddns.net:4072

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-MBHG8E

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      NEW ORDER FE7191PO1.exe

    • Size

      971KB

    • MD5

      b0442c4273a9316c625815156b6fbbe5

    • SHA1

      2e581d3e24a7e2e69369b259afd32dbcc0cbf20e

    • SHA256

      c1eeb9ddca80bda9fa0f220c2eb5767021a29055e8edc7b25249e65aa24123eb

    • SHA512

      c6100e66aa886239f96beade7e2e3431b26545653b8d482faacd274d31f6e8ce49488e5fa366733b6acfa1edc40dd91d8a888676556c37eceaeaf7ad185acabe

    • SSDEEP

      24576:+bYUn9Wx+3amLyuRVRc2dqJsSJ68H6pIsaHqwk53kxqfTGDk:+XQxqaoycKuqJunIsaHZk53kEl

    • 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.

    • Downloads MZ/PE file

    • 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