Overview

overview

10

Static

static

3

ef182fd502...fb.exe

windows7-x64

10

ef182fd502...fb.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    ef182fd50241080b4e7194b90dba2c4a530ac53525dc465b6d1eed99e9df8cfb.exe

  • Size

    372KB

  • Sample

    250216-yex4xaxkbx

  • MD5

    a197494cf3434a69b23b4f36f4f3ad41

  • SHA1

    a217465ca9971191a2956a784143e7ad2f7b58c9

  • SHA256

    ef182fd50241080b4e7194b90dba2c4a530ac53525dc465b6d1eed99e9df8cfb

  • SHA512

    5db720053886633a8988e4480fc439c7f9c68f657bd4ab58959ab3ad8ba577cb41c1c13fdb039998905a464ef36fd49c72c946376db04a0feb4f22f28570288e

  • SSDEEP

    6144:tVdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhiS6:t3qQx+H2i+8LBNbdypazCXYM

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

      ef182fd50241080b4e7194b90dba2c4a530ac53525dc465b6d1eed99e9df8cfb.exe

    • Size

      372KB

    • MD5

      a197494cf3434a69b23b4f36f4f3ad41

    • SHA1

      a217465ca9971191a2956a784143e7ad2f7b58c9

    • SHA256

      ef182fd50241080b4e7194b90dba2c4a530ac53525dc465b6d1eed99e9df8cfb

    • SHA512

      5db720053886633a8988e4480fc439c7f9c68f657bd4ab58959ab3ad8ba577cb41c1c13fdb039998905a464ef36fd49c72c946376db04a0feb4f22f28570288e

    • SSDEEP

      6144:tVdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhiS6:t3qQx+H2i+8LBNbdypazCXYM

    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