Overview

overview

10

Static

static

3

48773abdad...9f.exe

windows7-x64

10

48773abdad...9f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    48773abdad4ef3e8339d4ed2aa02f9d41611e02aefd9e93b0833a2ab99a1619f.exe

  • Size

    514KB

  • Sample

    250110-rjjnrawnfz

  • MD5

    78c37a72c91559ed73b7cbec99534bfc

  • SHA1

    7813d8411e63c5599cd3c85ed306e2e04562c079

  • SHA256

    48773abdad4ef3e8339d4ed2aa02f9d41611e02aefd9e93b0833a2ab99a1619f

  • SHA512

    05a46f20499096180ec46b9b25e97a5b539aa0d70fc5c0b9884b4438ff9503a6afeb44495dfda9d312bd254de830ee45c1ef431b9356311ee0beacd51685d2ad

  • SSDEEP

    12288:do1AcqnUMOYXUDCe+NaxMVkb7LrTwrC+X:doGHUMOL1AawkLrYC+X

Score
10/10
remcosyavakosadiscoverypersistencerat

Malware Config

Extracted

Family

remcos

Botnet

Yavakosa

C2

198.23.227.212:32583

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    yavascript.exe

  • copy_folder

    xenor

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-I7G983

  • 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

      48773abdad4ef3e8339d4ed2aa02f9d41611e02aefd9e93b0833a2ab99a1619f.exe

    • Size

      514KB

    • MD5

      78c37a72c91559ed73b7cbec99534bfc

    • SHA1

      7813d8411e63c5599cd3c85ed306e2e04562c079

    • SHA256

      48773abdad4ef3e8339d4ed2aa02f9d41611e02aefd9e93b0833a2ab99a1619f

    • SHA512

      05a46f20499096180ec46b9b25e97a5b539aa0d70fc5c0b9884b4438ff9503a6afeb44495dfda9d312bd254de830ee45c1ef431b9356311ee0beacd51685d2ad

    • SSDEEP

      12288:do1AcqnUMOYXUDCe+NaxMVkb7LrTwrC+X:doGHUMOL1AawkLrYC+X

    Score
    10/10
    remcosyavakosadiscoverypersistencerat

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • 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
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks