Overview

overview

10

Static

static

1

9963a82f9d...8e.exe

windows7-x64

10

9963a82f9d...8e.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    9963a82f9d9f9a95de0ed2976f93318e.exe

  • Size

    734KB

  • Sample

    230310-jfvb3sdh6v

  • MD5

    9963a82f9d9f9a95de0ed2976f93318e

  • SHA1

    5e40457e41dfc0aaa2bdf725f4f87b0d82ae6f94

  • SHA256

    b938ff358f891462489b2dc54b8d4cb2486eeebae2fa2dcd5a2e5c0de679b426

  • SHA512

    ad175d8825f2086e8e350e1b49f8acb2ca00e483798a75ff6ae1bf4f261c066c2e7741e9ecab6bac915f5bd1668ab2dfd9468737cdaa24ee4c64fd25f28648b3

  • SSDEEP

    12288:SFlLKHFjcsqUWDPaadszMbFSs7Wb1wfQKJ40X6A4Xh/lB7f+/fLCliy9KLbUW6UW:IDPaadszGlib1jG40Xwx/lwnmlL9Ye

Score
10/10
remcosupdatemicrosoftevasionpersistencephishingrattrojan

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Update

C2

ytuna1709.duckdns.org:3035

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    Windows Start-Up Audio.exe

  • copy_folder

    Microsoft Start-Up 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 Display

  • keylog_path

    %WinDir%

  • mouse_option

    false

  • mutex

    Windows Audio

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    Microsoft Sound Endpoint

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    Username;password;proforma;invoice;notepad

Targets

    • Target

      9963a82f9d9f9a95de0ed2976f93318e.exe

    • Size

      734KB

    • MD5

      9963a82f9d9f9a95de0ed2976f93318e

    • SHA1

      5e40457e41dfc0aaa2bdf725f4f87b0d82ae6f94

    • SHA256

      b938ff358f891462489b2dc54b8d4cb2486eeebae2fa2dcd5a2e5c0de679b426

    • SHA512

      ad175d8825f2086e8e350e1b49f8acb2ca00e483798a75ff6ae1bf4f261c066c2e7741e9ecab6bac915f5bd1668ab2dfd9468737cdaa24ee4c64fd25f28648b3

    • SSDEEP

      12288:SFlLKHFjcsqUWDPaadszMbFSs7Wb1wfQKJ40X6A4Xh/lB7f+/fLCliy9KLbUW6UW:IDPaadszGlib1jG40Xwx/lwnmlL9Ye

    Score
    10/10
    remcosupdateevasionpersistencerattrojanmicrosoftphishing

    • Remcos

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

      ratremcos

    • UAC bypass

      evasiontrojan

    • 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

    • Detected potential entity reuse from brand microsoft.

      phishingmicrosoft

    • 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

3
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks