General

  • Target

    fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575

  • Size

    928KB

  • Sample

    240419-fvsv1saf9w

  • MD5

    423e184767e7aa6c86106611b2061d6a

  • SHA1

    7faaf51dc57afeff5924f04231f0bcf2f859aa54

  • SHA256

    fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575

  • SHA512

    e6ccb5238c1ecfcf8e349e1f7cf060594309104701a34686b914a46545ef68002d2b5e3a076b1aba605d5faff3a875e5206f08bc7bd9eb86375a85328d9d19bf

  • SSDEEP

    24576:nvIUBqyyF1eovgDUYlEz0QjZe6y/+0yM:vIUcYlQ7jI68x

Malware Config

Extracted

Family

remcos

Botnet

JONS

C2

172.245.208.13:4445

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-R7QS5C

  • 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

      fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575

    • Size

      928KB

    • MD5

      423e184767e7aa6c86106611b2061d6a

    • SHA1

      7faaf51dc57afeff5924f04231f0bcf2f859aa54

    • SHA256

      fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575

    • SHA512

      e6ccb5238c1ecfcf8e349e1f7cf060594309104701a34686b914a46545ef68002d2b5e3a076b1aba605d5faff3a875e5206f08bc7bd9eb86375a85328d9d19bf

    • SSDEEP

      24576:nvIUBqyyF1eovgDUYlEz0QjZe6y/+0yM:vIUcYlQ7jI68x

    • 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.

    • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Detects executables built or packed with MPress PE compressor

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • ModiLoader Second Stage

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Executes dropped EXE

    • 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 Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Tasks