General

  • Target

    DOCUMENT.EXE

  • Size

    797KB

  • Sample

    220802-mm81lafagn

  • MD5

    045b6680b443b01289818a11a6813e2c

  • SHA1

    c4ec9902be1410cf826eb29f01bb719cae823f6b

  • SHA256

    e78b7dc51f81e9d3c1ad70db60b31908ccee6df8e2c6acbdb06499f4e3855c6e

  • SHA512

    603c4ece64efbfe64546a1f859636ac34555451a6b7159c05e5b02c4c15dc81013ec457be564c0d0b8ecf7c77f2ec46954a7765d56c3b515d397566839562f10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

dash.3utilities.com:2404

dash1.3utilities.com:2404

dash2.ddns.net:2404

bash.mywire.org:2404

bash1.accesscam.org:2404

dash3.ddns.net:2404

dash4.ddns.net:2404

bash2.accessscam.org:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    dashboard-6MIR0J

  • 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

  • take_screenshot_title

    notepad;solitaire;

Targets

    • Target

      DOCUMENT.EXE

    • Size

      797KB

    • MD5

      045b6680b443b01289818a11a6813e2c

    • SHA1

      c4ec9902be1410cf826eb29f01bb719cae823f6b

    • SHA256

      e78b7dc51f81e9d3c1ad70db60b31908ccee6df8e2c6acbdb06499f4e3855c6e

    • SHA512

      603c4ece64efbfe64546a1f859636ac34555451a6b7159c05e5b02c4c15dc81013ec457be564c0d0b8ecf7c77f2ec46954a7765d56c3b515d397566839562f10

    • 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.

    • Checks computer location settings

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

    • Adds Run key to start application

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Tasks