Overview

overview

10

Static

static

1

3c3e872e0d...7.xlsx

windows7-x64

10

3c3e872e0d...7.xlsx

windows10-2004-x64

1

Sharing

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General

  • Target

    3c3e872e0df7b7806ae47b846cb2d8d65ac3c0b2b9e38c1d3cbd95f7e6bcbbc7.zip

  • Size

    746KB

  • Sample

    230308-ngq39sfd7t

  • MD5

    387fb6adfbaf506cf5de7ab5df5b831f

  • SHA1

    bed2d0b1cded742ae5c92a18cd47dbc56123bf9a

  • SHA256

    0c5ee0315e16238ce8aac89db29693d3f43d95fdf81ed4ecf706f0cd6b77f923

  • SHA512

    ba33e2715c757fab124a620cd6020be025d231b3ead528a8b14eb4e5fc5dccf6e19c87985762c7ab766b82d03b21b8fb63457edb8f5e898be660e5b6a5e09a2b

  • SSDEEP

    12288:XvMpOtshlnszy0QCftU0JTiVuTVk3ofUAIbHbcFCp41uctmuXr9E53IOjQwfKwoa:fMpOshlnse0QCfZVOofUAILbhp4Ztm8a

Score
10/10
remcosmekino-remotehostpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

Mekino-RemoteHost

C2

nadiac7806.hopto.org:2397

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    los.exe

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Rmc-XBQXEL

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    trn

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      3c3e872e0df7b7806ae47b846cb2d8d65ac3c0b2b9e38c1d3cbd95f7e6bcbbc7.xlsx

    • Size

      748KB

    • MD5

      5c673daf8adddd84a0278d21944037ab

    • SHA1

      15fa6dfc9b0deea6c980ae4354f4cad4cc9c0fa1

    • SHA256

      3c3e872e0df7b7806ae47b846cb2d8d65ac3c0b2b9e38c1d3cbd95f7e6bcbbc7

    • SHA512

      f08fb38f945103d01fbb02802b4015d51333cc856882c6bbbf74cb0773bc73b90e1c9827e394fe51f4e2e0c6168756a9ba6a1f979cad1bbc8091f5eaa76ad343

    • SSDEEP

      12288:upKIKTeTJteMslluRVEh8/w8Q01l1EkoLJZJixQN3wkIatynztRzAFNluwLvydJm:ueeaBl4R/EkoLlmQN3+atotyYsu8

    Score
    10/10
    remcosmekino-remotehostpersistencerat

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks