Overview

overview

10

Static

static

10

334c23c94f...9f.exe

windows10-ltsc_2021-x64

10

Sharing

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General

  • Target
    334c23c94f9c6587e2afd0689796daa8791fda9b823b23836893b86f5cce849f.zip
  • Size 36KB
  • Sample260805-enakesxgqa
  • SHA256 48b86035d441831792939f75ec28e09002ed1b82b10e9b04f21189dc455e1911
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remcos1877defense_evasiondiscoveryexecutionpersistenceprivilege_escalationrat

Malware Config

Extracted

Family

  • remcos

Version

  • 1.7 Pro

Botnet

  • 1877

C2

  • hawler.duckdns.org:2404

  • 5.206.227.115:2404

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    svshost.exe

  • copy_folder

    1877

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %WinDir%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    1877

  • keylog_path

    %AppData%

  • mouse_option

    true

  • mutex

    1877_spelzoyulk

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    Google Update

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      334c23c94f9c6587e2afd0689796daa8791fda9b823b23836893b86f5cce849f.exe
    • Size 92KB
    • SHA256 334c23c94f9c6587e2afd0689796daa8791fda9b823b23836893b86f5cce849f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    1877defense_evasiondiscoveryexecutionremcospersistenceprivilege_escalationrat

    • Family: Remcos

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

      ratremcos

    • Modifies WinLogon for persistence

      persistence

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      defense_evasion

    • Adds policy Run key to start application

      persistence

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Modifies WinLogon

      persistence
    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Command Shell

1
T1059.003

Persistence

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

2
T1547.004

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

2
T1547.004

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Modify Registry

4
T1112

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

3
T1012

Remote System Discovery

1
T1018

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Virtualization/Sandbox Evasion

1
T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks