General

  • Target

    396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe

  • Size

    5.1MB

  • Sample

    240902-s22gysvblc

  • MD5

    aa1c1ce4915e430238dd1579fe0ee320

  • SHA1

    6df35550b84eb4b2648a09ff2be348ee326e7e78

  • SHA256

    396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53

  • SHA512

    04d46c3d8f73941b017b8c64302eebffe7a77a39d63c83dfbc5f71e45d1824557ea174dcc36c9ec82a4a176ae72ef840457855a11724314d255775b548f19d2e

  • SSDEEP

    98304:xXZvnKYEUwMXKCEXZvnKYEUwMXKC6XZvnKYEUwMXKC:xtnf3rXJEtnf3rXJ6tnf3rXJ

Malware Config

Extracted

Family

remcos

Botnet

Rain

C2

nzobaku.ddns.net:8081

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-OVTDA2

  • 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

      396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe

    • Size

      5.1MB

    • MD5

      aa1c1ce4915e430238dd1579fe0ee320

    • SHA1

      6df35550b84eb4b2648a09ff2be348ee326e7e78

    • SHA256

      396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53

    • SHA512

      04d46c3d8f73941b017b8c64302eebffe7a77a39d63c83dfbc5f71e45d1824557ea174dcc36c9ec82a4a176ae72ef840457855a11724314d255775b548f19d2e

    • SSDEEP

      98304:xXZvnKYEUwMXKCEXZvnKYEUwMXKC6XZvnKYEUwMXKC:xtnf3rXJEtnf3rXJ6tnf3rXJ

    • Remcos

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

    • 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

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks