General

  • Target

    3542d15a01ea595ee52539d6fd04e86426c2b8e0f7f43e982c05f821d1c10d6a.exe

  • Size

    1.1MB

  • Sample

    250121-jh57cstkdr

  • MD5

    944fac4e872a727de2afdc0131e7bc66

  • SHA1

    a645a69fd297d96ccda8d08603d973f386bccc30

  • SHA256

    3542d15a01ea595ee52539d6fd04e86426c2b8e0f7f43e982c05f821d1c10d6a

  • SHA512

    4b46b0e92eed1783d1d9b487f7db7131dc1b070e1366cc157fdea7ba852ebc216e8261f27a39ed6efb4d15ef5e29d6d2573a5f8bdc766ad333a0f3e2e0405778

  • SSDEEP

    24576:1u6J33O0c+JY5UZ+XC0kGso6FakCsU4yYhK3x9uZ3WYy:Xu0c++OCvkGs9Fak4BYy

Malware Config

Extracted

Family

remcos

Version

2.2.0 Pro

Botnet

RemoteHost

C2

185.217.1.142:3337

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    3

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    true

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-VBI2IL

  • 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

      3542d15a01ea595ee52539d6fd04e86426c2b8e0f7f43e982c05f821d1c10d6a.exe

    • Size

      1.1MB

    • MD5

      944fac4e872a727de2afdc0131e7bc66

    • SHA1

      a645a69fd297d96ccda8d08603d973f386bccc30

    • SHA256

      3542d15a01ea595ee52539d6fd04e86426c2b8e0f7f43e982c05f821d1c10d6a

    • SHA512

      4b46b0e92eed1783d1d9b487f7db7131dc1b070e1366cc157fdea7ba852ebc216e8261f27a39ed6efb4d15ef5e29d6d2573a5f8bdc766ad333a0f3e2e0405778

    • SSDEEP

      24576:1u6J33O0c+JY5UZ+XC0kGso6FakCsU4yYhK3x9uZ3WYy:Xu0c++OCvkGs9Fak4BYy

    • Modifies WinLogon for persistence

    • Remcos

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

    • Remcos family

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Adds Run key to start application

    • Modifies WinLogon

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks