Overview

overview

10

Static

static

3

f191ebd7b3...75.exe

windows7-x64

10

f191ebd7b3...75.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f191ebd7b3ec04f61c62489796c2e69c2d23b3f9d85a176da5deca50c48f7f75.exe

  • Size

    372KB

  • Sample

    250217-bctx5svlbm

  • MD5

    3a94a2a8c0dbf1c0752ddbb015854618

  • SHA1

    88b4fa506a9b0d1387c3d1649bb5aa1e106687b4

  • SHA256

    f191ebd7b3ec04f61c62489796c2e69c2d23b3f9d85a176da5deca50c48f7f75

  • SHA512

    0b63d8ac51088d2b1b434e72c22f7ce394b89757eb7e16c1dd672e3e8a7d2443daf2e1f48b8cf23c8aba142f7d257cd1dd70bc5860b2cba5f9bb52be69b044a8

  • SSDEEP

    6144:t8dgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhi+O:t2qQx+H2i+8LBNbdypazCXYQ

Score
10/10
remcostinodiscoverypersistencerat

Malware Config

Extracted

Family

remcos

Version

2.4.3 Pro

Botnet

TINo

C2

185.140.53.140:2404

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    true

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-5S9O07

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      f191ebd7b3ec04f61c62489796c2e69c2d23b3f9d85a176da5deca50c48f7f75.exe

    • Size

      372KB

    • MD5

      3a94a2a8c0dbf1c0752ddbb015854618

    • SHA1

      88b4fa506a9b0d1387c3d1649bb5aa1e106687b4

    • SHA256

      f191ebd7b3ec04f61c62489796c2e69c2d23b3f9d85a176da5deca50c48f7f75

    • SHA512

      0b63d8ac51088d2b1b434e72c22f7ce394b89757eb7e16c1dd672e3e8a7d2443daf2e1f48b8cf23c8aba142f7d257cd1dd70bc5860b2cba5f9bb52be69b044a8

    • SSDEEP

      6144:t8dgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhi+O:t2qQx+H2i+8LBNbdypazCXYQ

    Score
    10/10
    remcostinodiscoverypersistencerat

    • Modifies WinLogon for persistence

      persistence

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Downloads MZ/PE file

    • 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

    • Modifies WinLogon

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks