General

  • Target

    90b0616ab94409818db91b96d6f667e0.js

  • Size

    862KB

  • Sample

    220907-l4hz3aghfl

  • MD5

    73309e78b57e496c15de2fb726a47df5

  • SHA1

    8a97a30ecc9c5fe4bdb21808dc3a0423266d2df6

  • SHA256

    7fdb6fca0d66cbe9ae6961930a28072c31de98c6ec758a2045bc1931d4ed8fb8

  • SHA512

    a795913771c775cac4fe2d86ce0264df45a5cab2bf7f1910e9193bfd4ff6191a35bd0bed2527cef22ca314068395ccfd811d6c109e97a43466e8ea229791e425

  • SSDEEP

    12288:vo2f/mk67A3MTEzvzpmCp4BM75FlSPlnVWc2OC0yU5T5kiSwVS5jnliqxOJCfc:v3i83Iov0C4BaKPZnjRVS5DliqxO/

Malware Config

Extracted

Family

remcos

Botnet

Chinese

C2

185.157.162.75:2222

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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-WGAM8T

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    PowerPc

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      90b0616ab94409818db91b96d6f667e0.js

    • Size

      862KB

    • MD5

      73309e78b57e496c15de2fb726a47df5

    • SHA1

      8a97a30ecc9c5fe4bdb21808dc3a0423266d2df6

    • SHA256

      7fdb6fca0d66cbe9ae6961930a28072c31de98c6ec758a2045bc1931d4ed8fb8

    • SHA512

      a795913771c775cac4fe2d86ce0264df45a5cab2bf7f1910e9193bfd4ff6191a35bd0bed2527cef22ca314068395ccfd811d6c109e97a43466e8ea229791e425

    • SSDEEP

      12288:vo2f/mk67A3MTEzvzpmCp4BM75FlSPlnVWc2OC0yU5T5kiSwVS5jnliqxOJCfc:v3i83Iov0C4BaKPZnjRVS5DliqxO/

    • Remcos

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

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Adds Run key to start application

MITRE ATT&CK Enterprise v6

Tasks