Overview

overview

10

Static

static

3

0c74cb57c3...9e.rar

windows7-x64

3

0c74cb57c3...9e.rar

windows10-2004-x64

3

doc_030030...PG.exe

windows7-x64

10

doc_030030...PG.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    0c74cb57c375c6bc50b869c5d502f2922c593cc77ac119181ec680d32d67c49e
  • Size 1.0MB
  • Sample240903-wdyb6stdkf
  • SHA256 0c74cb57c375c6bc50b869c5d502f2922c593cc77ac119181ec680d32d67c49e
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcosaquafinadiscoverypersistencerat

Malware Config

Extracted

Family

  • remcos

Botnet

  • AQUAFINA

C2

  • december2n.duckdns.org:6241

  • december2nd.ddns.net:6241

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-5TYRFW

  • 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
      0c74cb57c375c6bc50b869c5d502f2922c593cc77ac119181ec680d32d67c49e
    • Size 1.0MB
    • SHA256 0c74cb57c375c6bc50b869c5d502f2922c593cc77ac119181ec680d32d67c49e
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    behavioral1behavioral2
    • Target
      doc_0300304032000.JPG.exe
    • Size 1.2MB
    • SHA256 a6ba56520ba01fe4dd295f81ddbec6d90df6e80ea4a50fd79895a82a0b14b3e9
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    remcosaquafinadiscoverypersistencerat

    • Remcos

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

      ratremcos

    • 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

      persistence

    • Suspicious use of SetThreadContext

    behavioral3behavioral4

MITRE ATT&CK Enterprise v15

Tasks