Overview

overview

10

Static

static

77ac51b18c...2d.exe

windows7_x64

10

77ac51b18c...2d.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    77ac51b18cd4a709780da4ca82a3f3a82d18600b9cbb9933f0dcf8dbe117872d

  • Size

    119KB

  • Sample

    220520-1527nahghp

  • MD5

    a257f126fda7ec1745bbbdb0ecb97dce

  • SHA1

    354cda5f58ff5828c9ce38b95f3c6d4aa6f59f6e

  • SHA256

    77ac51b18cd4a709780da4ca82a3f3a82d18600b9cbb9933f0dcf8dbe117872d

  • SHA512

    36ed37c96165672c49aa1b5d83988eda5063372bbbb1bf6f4c21868b80cd062895c94e9653ca2de30bbd2c55696ca12bfa744f1aacd500bdc9665c1d7827c5f2

Score
10/10
remcoslockdown openevasionpersistencerattrojan

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Lockdown Open

C2

ascoitaliasa.duckdns.org:4046

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    Windows logoff sound.exe

  • copy_folder

    Microsoft Media

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %WinDir%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    Windows Audio

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Window Audio

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    Window sound

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    Password;Username;proformer;invoice;notepad

Targets

    • Target

      77ac51b18cd4a709780da4ca82a3f3a82d18600b9cbb9933f0dcf8dbe117872d

    • Size

      119KB

    • MD5

      a257f126fda7ec1745bbbdb0ecb97dce

    • SHA1

      354cda5f58ff5828c9ce38b95f3c6d4aa6f59f6e

    • SHA256

      77ac51b18cd4a709780da4ca82a3f3a82d18600b9cbb9933f0dcf8dbe117872d

    • SHA512

      36ed37c96165672c49aa1b5d83988eda5063372bbbb1bf6f4c21868b80cd062895c94e9653ca2de30bbd2c55696ca12bfa744f1aacd500bdc9665c1d7827c5f2

    Score
    10/10
    remcoslockdown openevasionpersistencerattrojan

    • Remcos

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

      ratremcos

    • UAC bypass

      evasiontrojan

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Modify Registry

4
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks